Table of Contents
DELL U2715H User Manual
Displayed below is the user manual for U2715H by DELL which is a product in the Computer Monitors category. This manual has pages.
Related Manuals
User’s Guide
Dell UltraSharp U2715H
Model No.: U2715H
Regulatory model: U2715Hc
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better
use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of
data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage, personal
injury or death.
_________________________
Information in this document is subject to change without notice.
© 2015 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission
of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; Microsoft
and Windows are either trademarks or registered trademarks of Microsoft. Corporation in
the United States and/or other countries, Intel is a registered trademark of Intel Corporation
in the U.S. and other countries; and ATI is a trademark of Advanced Micro Devices, Inc.
ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an
ENERGY STAR partner, Dell Inc. has determined that this product meets the ENERGY STAR
guidelines for energy efficiency.
Other trademarks and trade names may be used in this document to refer to either the
entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary
interest in trademarks and trade names other than its own.
2015 - 09 Rev. A04
Contents | 3
Contents
1 About Your Monitor .................................................. 5
Package Contents ...................................................................... 5
Product Features ........................................................................6
Identifying Parts and Controls ................................................. 7
Monitor Specifications ............................................................10
Plug and Play Capability ..........................................................19
Universal Serial Bus (USB) Interface .................................... 20
LCD Monitor Quality and Pixel Policy ..................................21
Maintenance Guidelines .........................................................22
2 Setting Up the Monitor ........................................... 23
Attaching the Stand .................................................................23
Connecting Your Monitor ......................................................23
Organizing Your Cables ..........................................................29
Attaching the Cable Cover .................................................... 30
Removing the Monitor Stand ................................................ 30
Removing the Cable Cover ....................................................31
Wall Mounting (Optional) .......................................................31
3 Operating the Monitor ............................................32
Power On the Monitor ............................................................32
Using the Front Panel Controls .............................................32
Using the On-Screen Display (OSD) Menu .........................34
Setting the Maximum Resolution......................................... 48
Using the Tilt, Swivel, Vertical Extension, Rotation and
Dual Monitor Setup ................................................................. 48
Adjusting the Rotation Display Settings of Your System ..53
4 Troubleshooting ......................................................54
Self-Test .....................................................................................54
Built-in Diagnostics..................................................................55
Common Problems .................................................................56
Product-Specific Problems ....................................................58
Universal Serial Bus (USB) Specific Problems .................... 60
Mobile High-Definition Link (MHL) Specific Problems.... 60
4 | Contents
5 Appendix.................................................................... 61
FCC Notices (U.S. Only) and Other Regulatory
Information ................................................................................61
Contact Dell ..............................................................................61
Setting Up Your Monitor .........................................................62
About Your Monitor | 5
1 About Your Monitor
Package Contents
Your monitor ships with the components shown below. Ensure that you have
received all the components and Contact Dell if something is missing.
NOTE: Some items may be optional and may not ship with your monitor. Some
features or media may not be available in certain countries.
NOTE: To set up with any other stand, please refer to the respective stand setup
guide for setup instructions.
∞ Monitor
∞ Stand
∞ Cable Cover
∞ Power Cable (Varies by
Countries)
6 | About Your Monitor
∞ DP Cable (Mini-DP to
DP)
∞ USB 3.0 Upstream
Cable (Enables the USB
Ports on the Monitor)
DellTM UltraSharp U2715H Monitor
∞ Drivers and
Documentation Media
∞ Quick Setup Guide
∞ Safety and Regulatory
Information
∞ Factory calibration
report
Product Features
The Dell UltraSharp U2715H flat panel display has an active matrix, Thin-Film
Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features
include:
∞ U2715H: 68.5 cm (27 inch) viewable area display (measured diagonally). 2560 x
1440 resolution, plus full-screen support for lower resolutions.
∞ Wide viewing angle to allow viewing from a sitting or standing position, or while
moving from side-to-side.
∞ Tilt, swivel, vertical extension and rotate adjustment capabilities.
∞ Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier
set up with an elegant viewing experience.
∞ Removable stand and Video Electronics Standards Association (VESA™) 100 mm
mounting holes for flexible mounting solutions.
∞ Extensive all digital connectivity with DisplayPort, mini DisplayPort, HDMI (MHL),
USB 3.0 helps future proof your monitor.
∞ Plug and play capability if supported by your system.
∞ 99% sRGB Coverage with an average delta E ≤ 3.
∞ On-Screen Display (OSD) adjustments for ease of set-up and screen
optimization.
∞ Software and documentation media includes an Information File (INF), Image
Color Matching File (ICM), and product documentation.
About Your Monitor | 7
∞ Dell Display Manager Software included (comes in the CD shipped with the
monitor).
∞ Energy Saver feature for Energy Star compliance.
∞ Security lock slot.
∞ Stand lock.
∞ Capability to switch from wide aspect to standard aspect ratio while maintaining
the image quality.
∞ EPEAT Gold Rating.
∞ U2715H monitor is BFR/PVC-free (Halogen-free) excluding external cables.
∞ TCO-Certified Displays.
∞ Meets NFPA 99 leakage current requirements.
∞ Arsenic-Free glass and Mercury-Free for the panel only.
∞ High Dynamic Contrast Ratio (2,000,000:1).
∞ 0.5 W standby power when in the sleep mode.
∞ Energy Gauge shows the energy level being consumed by the monitor in real
time.
∞ Analogue backlight dimming control for flicker free display.
Identifying Parts and Controls
Front View
Front panel controls
2 31
Label Description
1Function buttons (For more information, see
Operating the Monitor)
2Power LED indicator
3Power On/Off button
8 | About Your Monitor
Back View
Back View with monitor stand
Label Description Use
1VESA mounting holes (100 mm x 100
mm - behind attached VESA Cover)
Wall mount monitor using VESA-
compatible wall mount kit (100 mm x
100 mm).
2Regulatory label Lists the regulatory approvals.
3Stand release button Releases stand from monitor.
4Security lock slot Secures monitor with security lock
(security lock not included).
5Service tag label The Dell service tag is used for Dell
warranty and customer service
management purposes and for
records of the base system.
6Barcode serial number label Refer to this label if you need to
contact Dell for technical support.
7USB downstream port* Connects your USB device. You can
only use this connector after you
have connected the USB cable to
the computer and USB upstream
connector on the monitor.
8Cable management slot Uses to organize cables by placing
them through the slot.
* It is recommended to use this port for your wireless USB device whenever possible.
About Your Monitor | 9
Side View
Bottom View
Bottom view without monitor stand
Label Description Use
1AC power cord connector Connect the power cable.
2Dell Soundbar mounting
slots
Attach the optional Dell Soundbar.
NOTE: Please remove the plastic strip covering
the mounting slots before affixing the Dell
Soundbar.
3HDMI (MHL) port
connector
Connect your MHL devices with MHL cable.
4Stand lock feature To lock the stand to the monitor using a M3 x 6
mm screw (screw not included).
5DisplayPort in connector Connect your computer with DP cable.
6Mini DisplayPort in
connector
Connect your computer with Mini-DP to DP
cable.
10 | About Your Monitor
7DisplayPort out (MST)
connector
DisplayPort output for MST (Multi-Stream
Transport) capable monitor. DP 1.1 monitor can
only be connected as the last monitor in the
MST chain. To enable MST, refer to instruction
on section "Connecting the monitor for DP
Multi-Stream Transport (MST) function".
8Audio-Line out Connect your speakers*.
9USB upstream port Connect the USB cable that came with your
monitor to the computer. Once this cable is
connected, you can use the USB connectors on
the monitor.
10
(a,b)
USB downstream port Connect your USB device. You can only use
this connector after you have connected the
USB cable to the computer and USB upstream
connector on the monitor.**
* Headphone usage is not supported for the audio line out connector.
** It is recommended to use either the port (10b) or the USB downstream port on the
rear side for your wireless USB device whenever possible.
Monitor Specifications
Flat Panel Specifications
Model U2715H
Screen type Active matrix - TFT LCD
Panel type In Plane Switching
Viewable image
Diagonal
Horizontal, Active Area
Vertical, Active Area
Area
684.70 mm (27 inches)
596.74 mm (23.49 inches)
335.66 mm (13.21 inches)
200301.75 mm2 (310.47 inch2)
Pixel pitch 0.2331 mm
Viewing angle 178° (vertical) typical, 170° (vertical) Min
178° (horizontal) typical, 170° (horizontal) Min
Luminance output 350 cd/m² (typical), 50 cd/m² (min)
Contrast ratio 1000 to 1 (typical), 700 to 1(Min)
2M to 1 (typical Dynamic Contrast On)
Faceplate coating Anti-Glare with 3H hardness
Backlight LED edgelight system
About Your Monitor | 11
Response time FAST mode: 6 ms gray to gray (typical)
NORMAL mode: 8 ms gray to gray (typical)
On/Off: 19 ms black to white (typical)
Color depth 16.78 million colors
Color gamut CIE 1976 (91%), CIE 1931 (76%) and sRGB
coverage 99%
Resolution Specifications
Model U2715H
Horizontal scan range 30 kHz to 113 kHz (automatic)
Vertical scan range 56 Hz to 86 Hz (automatic)
Maximum preset resolution 2560 x 1440 at 60 Hz
Supported Video Modes
Model U2715H
Video display capabilities (HDMI
& DP playback)
480p, 480i, 576p, 720p, 1080p, 576i, 1080i
Preset Display Modes
Display Mode Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal /
Vertical)
VESA, 720 x 400 31.5 70.1 28.3 -/+
VESA, 640 x 480 31.5 60.0 25.2 -/-
VESA, 640 x 480 37.5 75.0 31.5 -/-
VESA, 800 x 600 37.9 60.3 40.0 +/+
VESA, 800 x 600 46.9 75.0 49.5 +/+
VESA, 1024 x 768 48.4 60.0 65.0 -/-
VESA, 1024 x 768 60.0 75.0 78.8 +/+
VESA, 1152 x 864 67.5 75.0 108.0 +/+
VESA, 1280 x 1024 64.0 60.0 108.0 +/+
VESA, 1280 x 1024 80.0 75.0 135.0 +/+
VESA, 1600 x 1200 75.0 60.0 162.0 +/+
VESA, 1920 x 1080 67.5 60.0 148.5 +/+
VESA, 2560 x 1440 88.8 60.0 241.5 +/-
12 | About Your Monitor
MHL Source Display Modes
Display Mode Frequency (Hz)
640 x 480p 60
720 x 480p 60
720 x 576p 50
1280 x 720p 60
1280 x 720p 50
1920 x 1080i 60
1920 x 1080i 50
1920 x 1080p 30
1920 x 1080p 60
1920 x 1080p 50
720 (1440) x 480i 60
720 (1440) x 576i 50
MST Multi-Stream Transport (MST) Modes
MST Source Monitor Maximum number of external monitor that can be
supported
2560x1440/60Hz 1920x1200/60Hz 1920x1080/60Hz
2560 x 1440/ 60Hz 1 2 2
Electrical Specifications
Model U2715H
Video input signals ∞ HDMI 1.4 (MHL 2.0)*, 600mV for each
differential line, 100 ohm input impedance per
differential pair
∞ DisplayPort 1.2**, 600mV for each differential
line, 100 ohm input impedance per differential
pair
AC input voltage/frequency/
current
100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.5
A (typical)
Inrush current ∞ 120 V: 40 A (Max.) at 0 °C (cold start)
∞ 240 V: 80 A (Max.) at 0 °C (cold start)
* Does not support HDMI 1.4 optional specification, includes HDMI Ethernet Channel
(HEC), Audio Return Channel (ARC), standard for 3D format and resolutions, standard
for 2K and 4K digital cinema resolution.
** Supports DP1.2 (CORE) specification, include HBR2, MST and DP audio.
About Your Monitor | 13
Physical Characteristics
Model U2715H
Connector type DP, black connector (includes DP in and DP out);
Mini DisplayPort; HDMI (MHL); USB 3.0
Signal cable type ∞ Digital: detachable, HDMI, 19 pins
∞ Digital: detachable, MHL, 19 pins
∞ Digital: detachable, Mini-DP to DP, 20 pins
∞ Universal Serial Bus: detachable, USB, 9 pins
Dimensions (with stand)
Height (extended) 524.9 mm (20.67 inches)
Height (compressed) 409.9 mm (16.14 inches)
Width 612.7 mm (24.12 inches)
Depth 205.0 mm (8.07 inches)
Dimensions (without stand)
Height 363.4 mm (14.31 inches)
Width 612.7 mm (24.12 inches)
Depth 46.4 mm (1.83 inches)
Stand dimensions
Height (extended) 418.0 mm (16.46 inches)
Height (compressed) 371.6 mm (14.63 inches)
Width 245.0 mm (9.65 inches)
Depth 205.0 mm (8.07 inches)
Weight
Weight with packaging 10.47 kg (23.03 lb)
Weight with stand assembly and
cables
7.38 kg (16.24 lb)
Weight without stand assembly
(For wall mount or VESA mount
considerations - no cables)
4.91 kg (10.08 lb)
Weight of stand assembly 2.11 kg (4.64 lb)
Front frame gloss Black Frame - 13 gloss unit (max.)
14 | About Your Monitor
Environmental Characteristics
Model U2715H
Temperature
Operating 0 °C to 40 °C (32 °F to 104 °F)
Non-operating ∞ Storage: -20 °C to 60 °C (-4 °F to 140 °F)
∞ Shipping: -20 °C to 60 °C (-4 °F to 140 °F)
Humidity
Operating 10% to 80% (non-condensing)
Non-operating ∞ Storage: 5% to 90% (non-condensing)
∞ Shipping: 5% to 90% (non-condensing)
Altitude
Operating 5,000 m (16,400 ft) (maximum)
Non-operating 12,192 m (40,000 ft) (maximum)
Thermal dissipation ∞ 300.08 BTU/hour (maximum)
∞ 109.12 BTU/hour (typical)
Power Management Modes
If you have VESA's DPM™ compliance display card or software installed in your PC,
the monitor can automatically reduce its power consumption when not in use. This
is referred to as Power Save Mode*. If the computer detects input from the keyboard,
mouse or other input devices, the monitor automatically resumes functioning. The
following table shows the power consumption and signaling of this automatic power
saving feature.
* Zero power consumption in OFF mode can only be achieved by disconnecting the
main cable from the monitor.
VESA
Modes
Horizontal
Sync
Vertical
Sync
Video Power
Indicator
Power
Consumption
Normal
operation
Active Active Active White 88 W (maximum)**
36 W (typical)
Active-off
mode
Inactive Inactive Blanked White
(Glowing )
Less than 0.5 W
Switch off - - - Off Less than 0.5 W
** Maximum power consumption with max luminance and USB active.
The OSD functions only in the normal operation mode. When any button is pressed
in the Active-off mode, one of the following messages will be displayed:
About Your Monitor | 15
Dell U2715H
There is no signal coming from your computer. Press any key on the
keyboard or move the mouse to wake it up. If there is no display, press the
monitor button now to select the correct input source on the On-Screen-
Display menu.
or
Dell U2715H
There is no signal coming from your device. Please activate your device to
wake it up. If there is no display, press the monitor button now to select
the correct input source on the On-Screen-Display menu.
Activate the computer and the monitor to gain access to the OSD.
NOTE: This monitor is ENERGY STAR®-compliant.
16 | About Your Monitor
Pin Assignments
DisplayPort Connector
Pin
Number
20-pin Side of the Connected
Signal Cable
1 ML0(p)
2 GND
3 ML0(n)
4 ML1(p)
5 GND
6 ML1(n)
7 ML2(p)
8 GND
9 ML2(n)
10 ML3(p)
11 GND
12 ML3(n)
13 GND
14 GND
15 AUX(p)
16 GND
17 AUX(n)
18 GND
19 Re-PWR
20 +3.3 V DP_PWR
About Your Monitor | 17
Mini DisplayPort Connector
Pin
Number
20-pin Side of the Connected
Signal Cable
1 GND
2 Hot Plug Detect
3 ML3(n)
4 GND
5 ML3(p)
6 GND
7 GND
8 GND
9 ML2(n)
10 ML0(n)
11 ML2(p)
12 ML0(p)
13 GND
14 GND
15 ML1(n)
16 AUX(p)
17 ML1(p)
18 AUX(n)
19 GND
20 +3.3 V DP_PWR
18 | About Your Monitor
HDMI Connector
Pin
Number
19-pin Side of the Connected
Signal Cable
1 TMDS DATA 2+
2 TMDS DATA 2 SHIELD
3 TMDS DATA 2-
4 TMDS DATA 1+
5 TMDS DATA 1 SHIELD
6 TMDS DATA 1-
7 TMDS DATA 0+
8 TMDS DATA 0 SHIELD
9 TMDS DATA 0-
10 TMDS CLOCK+
11 TMDS CLOCK SHIELD
12 TMDS CLOCK-
13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 DDC/CEC Ground
18 +5V POWER
19 HOT PLUG DETECT
About Your Monitor | 19
MHL Connector
Pin
Number
19-pin Side of the Connected
Signal Cable
1 TMDS DATA 2+
2 TMDS DATA 2 SHIELD
3 TMDS DATA 2-
4 TMDS DATA 1+
5 GND
6 TMDS DATA 1-
7 MHL+
8 TMDS DATA 0 SHIELD
9 MHL-
10 TMDS CLOCK+
11 GND
12 TMDS CLOCK-
13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 GND
18 VBUS (+5V, 900mA maximum)
19 CBUS
Plug and Play Capability
You can install the monitor in any Plug and Play-compatible system. The monitor
automatically provides the computer system with its Extended Display Identification
Data (EDID) using Display Data Channel (DDC) protocols so the system can configure
itself and optimize the monitor settings. Most monitor installations are automatic,
you can select different settings if desired. For more information about changing the
monitor settings, see Operating the Monitor.
20 | About Your Monitor
Universal Serial Bus (USB) Interface
This section gives you information about the USB ports that are available on the
monitor.
NOTE: This monitor is SuperSpeed USB 3.0 compatible.
Transfer Speed Data Rate Power Consumption*
Super-speed 5 Gbps 4.5 W (Max, each port)
High speed 480 Mbps 4.5 W (Max, each port)
Full speed 12 Mbps 4.5 W (Max, each port)
* Up to 2A on USB downstream port (port with lightning icon) with BC1.2
compliance devices or normal USB devices.
USB Upstream Connector
Pin Number 9-pin Side of the Connector
1 VCC
2 D-
3 D+
4 GND
5 SSTX-
6 SSTX+
7 GND
8 SSRX-
9 SSRX+
About Your Monitor | 21
USB Downstream Connector
Pin Number 9-pin Side of the Connector
1 VCC
2 D-
3 D+
4 GND
5 SSTX-
6 SSTX+
7 GND
8 SSRX-
9 SSRX+
USB Ports
∞ 1 upstream - back
∞ 5 downstream - back
∞ Power Charging Port- the port with lightning icon; supports fast current
charging capability if the device is BC1.2 compatible.
NOTE: USB 3.0 functionality requires a USB 3.0-capable computer.
NOTE: The monitor's USB interface works only when the monitor is On or in the
power save mode. If you turn Off the monitor and then turn it On, the attached
peripherals may take a few seconds to resume normal functionality.
LCD Monitor Quality and Pixel Policy
During the LCD Monitor manufacturing process, it is not uncommon for one or more
pixels to become fixed in an unchanging state which are hard to see and do not affect
the display quality or usability. For more information on Dell Monitor Quality and Pixel
Policy, see Dell Support site at: http://www.dell.com/support/monitors.
22 | About Your Monitor
Maintenance Guidelines
Cleaning Your Monitor
CAUTION: Read and follow the Safety Instructions before cleaning the monitor.
WARNING: Before cleaning the monitor, unplug the monitor power cable from
the electrical outlet.
For best practices, follow the instructions in the list below while unpacking, cleaning
or handling your monitor:
∞ To clean your anti-static screen, lightly dampen a soft, clean cloth with water.
If possible, use a special screen-cleaning tissue or solution suitable for the anti-
static coating. Do not use benzene, thinner, ammonia, abrasive cleaners or
compressed air.
∞ Use a lightly-dampened, warm cloth to clean the monitor. Avoid using
detergent of any kind as some detergents leave a milky film on the monitor.
∞ If you notice white powder when you unpack your monitor, wipe it off with a
cloth.
∞ Handle your monitor with care as a darker-colored monitor may get scratched
and show white scuff marks more than a lighter-colored monitor.
∞ To help maintain the best image quality on your monitor, use a dynamically
changing screen saver and turn Off your monitor when not in use.
Setting Up the Monitor | 23
2 Setting Up the Monitor
Attaching the Stand
NOTE: The stand is detached when the monitor is shipped from the factory.
NOTE: This is applicable for a monitor with a stand. When any other stand
is bought, please refer to the respective stand setup guide for the setup
instructions.
To attach the monitor stand:
1. Remove the cover and place the monitor on it.
2. Fit the two tabs on the upper part of the stand to the groove on the back of the
monitor.
3. Press the stand till it snaps into place.
Connecting Your Monitor
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions.
NOTE: Do not connect all cables to the computer at the same time.
To connect your monitor to the computer:
1. Turn Off your computer and disconnect the power cable.
Connect the DP/Mini-DP to DP/HDMI/MHL cable from your monitor to the
computer.
24 | Setting Up the Monitor
Connecting the HDMI cable
Connecting the MHL cable
Connecting the black DisplayPort (Mini-DP to DP) cable
Setting Up the Monitor | 25
Connecting the black DisplayPort (DP to DP) cable
Connecting the monitor for DP Multi-Stream Transport (MST)
function
NOTE: U2715H supports the DP MST feature. To make use of this feature, your
PC Graphics Card must be certified to DP1.2 with MST option.
The default out of factory setting in the U2715H is DP1.1a.
To enable MST connection, please use only DP cable as provided in box (or other
DP1.2 certified cable) and change the DP setting to DP1.2 by performing the below
steps:
A) Monitor is able to show content
1. Use OSD button to navigate to Display Settings.
26 | Setting Up the Monitor
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Energy
Menu
Others
Personalize
Aspect Ratio
Sharpness
Response Time
Dynamic Contrast
Wide 16:9
50
Normal
DP 1.2
Reset Display Settings
Disable
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
2. Go to DP 1.2 selection.
3. Select Enable or Disable accordingly
4. Follow the screen message to confirm selection of DP1.2 or DP1.1a.
Dell U2715H
Please ensure your Graphics Card can support DP MST(Daisy Chain)/
HBR2(High Bit Rate) before changing the monitor setting to DP1.2.
Incorrect setting may result in blank screen on monitor.
Confirm
Exit
Dell U2715H
DP MST/HBR2 will be disabled for DP1.1a
Confirm
Exit
Setting Up the Monitor | 27
B) Monitor fails to show any content (blank screen)
1. Use the and button to highlight DP or mDP.
DP
mDP
2. Press and hold the button for approximately 8 seconds.
3. The DisplayPort configuration message will appear:
Dell U2715H
DP 1.2?
Enable
Disable
4. Use the button to enable DP1.2 or button to exit without making any
changes.
Repeat the above steps to change the setting back to DP 1.1a if necessary.
CAUTION: The graphics are used for the purpose of illustration only.
Appearance of the computer may vary.
28 | Setting Up the Monitor
Connecting the USB 3.0 cable
After you have completed connecting the Mini-DP to DP/DP/HDMI cable, follow the
procedures below to connect the USB 3.0 cable to the computer and complete your
monitor setup:
1. Connect the upstream USB 3.0 port (cable supplied) to an appropriate USB 3.0
port on your computer. (See Bottom View for details.)
2. Connect the USB 3.0 peripherals to the downstream USB 3.0 ports on the
monitor.
3. Plug the power cables for your computer and monitor into a nearby outlet.
4. Turn On the monitor and the computer.
If your monitor displays an image, installation is complete. If it does not display
an image, see Universal Serial Bus (USB) Specific Problems.
5. Use the cable slot on the monitor stand to organize the cables.
Using the (MHL) Mobile-High Definition Link
NOTE: This monitor is MHL certified.
NOTE: To use the MHL function, use only MHL-certified cable and source
devices that support MHL output.
NOTE: Some MHL source devices may take more than a few seconds or longer
to output an image, depending on MHL source devices.
NOTE: When the connected MHL source device enters Standby mode, the
monitor will display black screen or show the massage below, depending on
MHL source device's output.
Dell U2715H
Entering Power Save Mode.
To enable MHL connection, please perform the below steps:
Setting Up the Monitor | 29
1. Plug the power cable of your monitor into an AC outlet.
2. Connect the (micro) USB port on your MHL source device to HDMI (MHL) 1 or
HDMI (MHL) 2 port on the monitor with a MHL-certified cable (See Bottom View
for details.)
3. Turn On the monitor and the MHL source device.
4. Select input source on monitor to HDMI (MHL) 1 or HDMI (MHL) 2 by using OSD
Menu (See Using the On-Screen Display (OSD) Menu for details.)
5. If it does not display an image, see Mobile High-Definition Link (MHL) Specific
Problems.
Organizing Your Cables
After attaching all necessary cables to your monitor and computer, (See Connecting
Your Monitor for cable attachment,) organize all cables as shown above.
30 | Setting Up the Monitor
Attaching the Cable Cover
NOTE: The cable cover is detached when the monitor is shipped from the
factory.
1
2
1. Fit the two tabs on the bottom part of the cable cover to the groove on the back
of the monitor.
2. Press the cable cover till it snaps into place.
Removing the Monitor Stand
NOTE: To prevent scratches on the LCD screen while removing the stand,
ensure that the monitor is placed on a soft, clean surface.
NOTE: This is applicable for a monitor with a stand. When any other stand
is bought, please refer to the respective stand setup guide for the setup
instructions.
2
3
To remove the stand:
1. Place the monitor on a soft cloth or cushion.
2. Press and hold the stand release button.
3. Lift the stand up and away from the monitor
Setting Up the Monitor | 31
Removing the Cable Cover
1
2
1. Press the tab on the cable cover.
2. Remove the two tabs on the bottom part of the cable cover from the groove on
the back of the monitor.
Wall Mounting (Optional)
Service Tag:1NGTQV1
Express SVC code:359 576 607 77
(Screw dimension: M4 x 10 mm).
Refer to the instructions that come with the VESA-compatible wall mounting kit.
1. Place the monitor panel on a soft cloth or cushion on a stable, flat table.
2. Remove the stand.
3. Use a Phillips crosshead screwdriver to remove the four screws securing the
plastic cover.
4. Attach the mounting bracket from the wall mounting kit to the monitor.
5. Mount the monitor on the wall by following the instructions that comes with the
wall mounting kit.
NOTE: For use only with UL-listed wall mount bracket with minimum weight/
load bearing capacity of 4.91 kg.
32 | Operating the Monitor
3 Operating the Monitor
Power On the Monitor
Press the button to turn On the monitor.
Using the Front Panel Controls
Use the control buttons on the front of the monitor to adjust the characteristics of
the image being displayed. As you use these buttons to adjust the controls, an OSD
shows the numeric values of the characteristics as they change.
2 31
The following table describes the front panel buttons:
Front Panel Button Description
1
Shortcut key/Preset
Modes
Use this button to choose from a list of preset color
modes.
Operating the Monitor | 33
Shortcut key/
Brightness/Contrast
Use this button to directly access the Brightness/
Contrast menu.
Menu
Use the MENU button to launch the On-Screen
Display (OSD) and select the OSD Menu. See
Accessing the Menu System.
Exit
Use this button to go back to the main menu or exit
the OSD main menu.
2
and
3Power (with power
light indicator)
Use the Power button to turn the monitor On and Off.
The white light indicates the monitor is On and fully
functional. A glowing white light indicates the power
save mode.
Front Panel Button
Use the buttons on the front of the monitor to adjust the image settings.
Front Panel Button Description
1
Up
Use the Up button to adjust (increase ranges) items in
the OSD menu.
2
Down
Use the Down button to adjust (decrease ranges)
items in the OSD menu.
3
OK
Use the OK button to confirm your selection.
4
Back
Use the Back button to go back to the previous menu.
34 | Operating the Monitor
Using the On-Screen Display (OSD) Menu
Accessing the Menu System
NOTE: If you change the settings and then either proceed to another menu or
exit the OSD menu, the monitor automatically saves those changes. The changes
are also saved if you change the settings and then wait for the OSD menu to
disappear.
1. Press the button to launch the OSD menu and display the main menu.
Main Menu for digital (HDMI (MHL) 1/ HDMI (MHL) 2) input
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Resolution: 1920x1080, 60Hz Maximum: 2560x1440, 60Hz
50 50
or
Main Menu for digital (mini DisplayPort) input
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
50 50
or
Operating the Monitor | 35
Main Menu for digital (DP) input
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
50 50
2. Press the and buttons to move between the setting options. As you move
from one icon to another, the option name is highlighted. See the following
table for a complete list of all the options available for the monitor.
3. Press the button once to activate the highlighted option.
4. Press and button to select the desired parameter.
5. Press to enter the slide bar and then use the and buttons, according
to the indicators on the menu, to make your changes.
6. Select the button to return to the main menu.
36 | Operating the Monitor
Icon Menu and
Submenus
Description
Brightness/
Contrast
Use this menu to activate Brightness/Contrast
adjustment.
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
50 50
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
Brightness Brightness adjusts the luminance of the backlight.
Press the button to increase the brightness and press
the button to decrease the brightness (min. 0 / max.
100).
NOTE: Manual adjustment of Brightness is disabled when
Dynamic Contrast is switched On.
Contrast Adjust the Brightness first, and then adjust the Contrast
only if further adjustment is necessary.
Press the button to increase the contrast and press the
button to decrease the contrast (min. 0 / max. 100).
The Contrast function adjusts the degree of difference
between darkness and lightness on the monitor screen.
Operating the Monitor | 37
Input Source Use the Input Source menu to select between the
different video signals that may be connected to your
monitor.
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
mDP
HDMI(MHL) 1
HDMI(MHL) 2
DP
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
DP Select the DP input when you are using the DisplayPort
(DP) connector. Press to select the DP input source.
mDP Select the mDP input when you are using the Mini
DisplayPort (Mini DP) connector. Press to select the
mDP input source.
HDMI (MHL) 1
HDMI (MHL) 2
Select the HDMI (MHL) 1 or HDMI (MHL) 2 input when
you are using the HDMI connectors. Press to select
the HDMI (MHL) 1 or HDMI (MHL) 2 input source.
Color Use Color to adjust the color setting mode.
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Input Color Format
Gamma
Preset Modes
Reset Color Settings
RGB
PC
Maximum: 2560x1440, 60Hz
Standard
Resolution: 1920x1080, 60Hz
38 | Operating the Monitor
Input Color
Format
Allows you to set the video input mode to:
RGB: Select this option if your monitor is connected to
a computer (or DVD player) using the HDMI cable (or
DisplayPort cable) or MHL devices using MHL cable.
YPbPr: Select this option if your monitor is connected to
a DVD player by YPbPr using HDMI cable (or DisplayPort
cable) or MHL devices by YPbPr using MHL cable.
Or if the DVD (or MHL devices) color output setting is not
RGB.
Energy UseDell U2715H
Brightness / Contrast
Gamma
Preset Modes
Reset Color Settings
Maximum: 2560x1440, 60Hz
Input Source
Color
Display
Energy
Menu
Others
Personalize
RGB
YPbPr
Input Color Format
Resolution: 1920x1080, 60Hz
Gamma Allows you to set the Gamma to PC or MAC.
Energy UseDell U2715H
Brightness / Contrast
Preset Modes
Reset Color Settings
Maximum: 2560x1440, 60Hz
Input Source
Color
Display
Energy
Menu
Others
Personalize
PC
MAC
Input Color Format
Gamma
Resolution: 1920x1080, 60Hz
Operating the Monitor | 39
Preset Modes When you select Preset Modes, you can choose
Standard, Multimedia, Movie, Game, Paper, Color Temp.
or Custom Color from the list.
∞ Standard: Loads the monitor's default color settings.
This is the default preset mode.
∞ Multimedia: Loads color settings ideal for multimedia
applications.
∞ Movie: Loads color settings ideal for movies.
∞ Game: Loads color settings ideal for most gaming
applications.
∞ Paper: Loads brightness and sharpness settings ideal
for viewing text. Blend the text background to simulate
paper media without affecting color images. Applies to
RGB input format only.
∞ Color Temp.: Allows users to select the color
temperature: 5000K, 5700K, 6500K, 7500K, 9300K and
10000K.
∞ Custom Color: Allows you to manually adjust the color
settings.
Press the and buttons to adjust the three colors (R,
G, B) values and create your own preset color mode.
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Input Color Format
Preset Modes
Gamma
Reset Color Settings
Movie
Standard
Multimedia
Game
Paper
Color Temp.
Custom Color
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
Hue This feature can shift the color of the video image to
green or purple. This is used to adjust the desired flesh
tone color. Use or to adjust the hue from '0' to
'100'.
Press to increase the green shade of the video image.
Press to increase the purple shade of the video image.
NOTE: Hue adjustment is available only when you select
Movie or Game preset mode.
40 | Operating the Monitor
Saturation This feature can adjust the color saturation of the video
image. Use or to adjust the saturation from '0' to
'100'.
Press to increase the monochrome appearance of the
video image.
Press to increase the colorful appearance of the video
image.
NOTE: Saturation adjustment is available only when you
select Movie or Game preset mode.
Reset Color
Settings
Reset your monitor color settings to the factory settings.
Display Use the Display to adjust image.
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Aspect Ratio
Sharpness
Wide 16:9
50
NormalResponse Time
DP 1.2
Dynamic Contrast
Reset Display Settings
Disable
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
Aspect Ratio Adjusts the image ratio to Wide 16:9, 4:3 or 5:4.
Sharpness This feature can make the image look sharper or softer.
Use or to adjust the sharpness from '0' to '100'.
Response Time User can select between Fast or Normal.
Dynamic
Contrast
Allows you to increase the level of contrast to provide
sharper and more detailed image quality.
Press the button to select the Dynamic Contrast "On"
or "Off".
NOTE: Dynamic Contrast provides higher contrast if you
select Game or Movie preset mode.
Operating the Monitor | 41
DP 1.2 Press to enable or disable DP 1.2.
To use the DP MST (Daisy Chain) or HBR2 feature, enable
DP 1.2.
NOTE: Ensure your Graphics Card can support these
features before selecting DP 1.2. Wrong setting may result
in blank screen. Some Graphics Cards do not support
MCCS (Monitor Control Command Set) at DP 1.2. In these
cases, DDM (Dell Display Manager) may not run.
Reset Display
Settings
Select this option to restore default display settings.
Energy
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Other
Personalize
Power Button LED
USB
Reset Energy Settings
O During Standby
On During Active
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
Power Button
LED
Allows you to set the power LED indicator On During
Active or Off During Active to save energy.
USB Allows you to enable or disable USB function during
monitor standby mode.
NOTE: USB on/off under standby mode is only available
when the USB upstream cable is unplugged. This option
will be greyed out when the USB upstream cable plugs in.
Reset Energy
Settings
Select this option to restore default Energy Settings.
42 | Operating the Monitor
Menu Select this option to adjust the settings of the OSD, such
as, the languages of the OSD, the amount of time the
menu remains on screen and so on.
Energy UseDell U2715H
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Language
Rotation
Transparency
Timer
English
Unlock
20s
Lock
Reset Menu Settings
20
Maximum: 2560x1440, 60Hz
Resolution: 1920x1080, 60Hz
Language Language options set the OSD display to one of the eight
languages (English, Spanish, French, German, Brazilian
Portuguese, Russian, Simplified Chinese or Japanese).
Rotation Rotates the OSD by 90 degrees counter-clockwise. You
can adjust the menu according to your Display Rotation.
Transparency Select this option to change the menu transparency by
pressing the and buttons (Minimum: 0 ~ Maximum:
100).
Timer OSD Hold Time: sets the length of time the OSD will
remain active after the last time you pressed a button.
Use or to adjust the slider in 1 second increments,
from 5 to 60 seconds.
Lock Controls user access to adjustments. When Lock is
selected, no user adjustments are allowed. All buttons are
locked.
NOTE:
Lock function – Either soft lock (through the OSD menu)
or hard lock (press and hold the button beside the power
button for 10 seconds)
Unlock function – Only hard unlock (press and hold the
button beside the power button for 10 seconds)
Reset Menu
Settings
Reset all OSD settings to the factory preset values.
Operating the Monitor | 43
Personalize Users can choose a feature from Preset Modes,
Brightness/Contrast, Input Source, Aspect Ratio or
Rotation and set it as a shortcut key.
Energy UseDell U2715H
Shortcut Key 1
Shortcut Key 2
Reset Personalization
Preset Modes
Brightness / Contrast
Aspect Ratio
Input Source
Rotation
Maximum: 2560x1440, 60Hz
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Resolution: 1920x1080, 60Hz
Shortcut Key 1 User can select one of the followings: Preset Modes,
Brightness/Contrast, Input Source, Aspect Ratio and
Rotation to set the Shortcut Key 1.
Shortcut Key 2 User can select one of the followings: Preset Modes,
Brightness/Contrast, Input Source, Aspect Ratio and
Rotation to set the Shortcut Key 2.
Reset
Personalization
Allows you to restore shortcut key to the default setting.
Others
Energy UseDell U2715H
Button Sound
DDC/CI
LCD Conditioning
Reset Other Settings
Factory Reset
O
Enable
Disable
Reset All Settings
Maximum: 2560x1440, 60Hz
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Others
Personalize
Resolution: 1920x1080, 60Hz
Button Sound The monitor beeps everytime a new option is selected in
the menu. This feature enables or disables the sound.
44 | Operating the Monitor
DDC/CI DDC/CI (Display Data Channel/Command Interface)
allows your monitor parameters (brightness, color
balance and etc.) to be adjustable via the software on
your computer.
You can disable this feature by selecting Disable.
Enable this feature for best user experience and optimum
performance of your monitor.
Energy UseDell U2715H
Button Sound
Reset Other Settings
Factory Reset
Maximum: 2560x1440, 60Hz
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Personalize
Others
DDC/CI
LCD Conditioning
Enable
Disable
Resolution: 1920x1080, 60Hz
LCD
Conditioning
Helps reduce minor cases of image retention. Depending
on the degree of image retention, the program may take
some time to run. You can enable this feature by selecting
Enable.
Energy UseDell U2715H
Button Sound
Reset Other Settings
Factory Reset
Maximum: 2560x1440, 60Hz
Brightness / Contrast
Input Source
Color
Display
Energy
Menu
Personalize
Others
DDC/CI
LCD Conditioning Enable
Disable
Resolution: 1920x1080, 60Hz
Reset Other
Settings
Reset all settings under the Others setting menu to the
factory preset values.
Factory Reset Reset all settings to the factory preset values.
NOTE: This monitor has a built-in feature to automatically calibrate the
brightness to compensate for LED aging.
Operating the Monitor | 45
OSD Warning Messages
When the Dynamic Contrast feature is enabled (in these preset modes: Game or
Movie), the manual brightness adjustment is disabled.
Dell U2715H
Do you wish to turn o Dynamic Contrast?
No
Yes
When the monitor does not support a particular resolution mode, you will see the
following message:
Dell U2715H
The current input timing is not supported by the monitor display. Please
change your input timing to 2560x1440, 60Hz or any other monitor
listed timing as per the monitor specifications.
This means that the monitor cannot synchronize with the signal that it is receiving
from the computer. See Monitor Specifications for the Horizontal and Vertical
frequency ranges addressable by this monitor. Recommended mode is 2560 x 1440.
You will see the following message before the DDC/CI function is disabled:
Dell U2715H
The function of adjusting display setting using PC application will be
disabled.
Do you wish to disable DDC/CI function?
No
Yes
46 | Operating the Monitor
When the monitor enters the Power Save Mode, the following message appears:
Dell U2715H
Entering Power Save Mode.
Activate the computer and wake up the monitor to gain access to the OSD.
If you press any button other than the power button, one of the following messages
will appear depending on the selected input:
HDMI (MHL)/mDP/DP input
Dell U2715H
There is no signal coming from your computer. Press any key on the
keyboard or move the mouse to wake it up. If there is no display, press
the monitor button now to select the correct input source on the
On-Screen-Display menu.
or
Dell U2715H
There is no signal coming from your device. Please activate your device to
wake it up. If there is no display, press the monitor button now to select
the correct input source on the On-Screen-Display menu.
If either HDMI (MHL), mDP or DP input is selected and the corresponding cable is not
connected, a floating dialog box as shown below appears.
Dell U2715H
or
Operating the Monitor | 47
Dell U2715H
The dispaly will go into Power Save Mode in 5 minutes
www.dell.com/support/monitors
No HDMI (MHL) 2 Cable
or
Dell U2715H
The dispaly will go into Power Save Mode in 5 minutes
www.dell.com/support/monitors
No mDP Cable
or
Dell U2715H
The dispaly will go into Power Save Mode in 5 minutes
www.dell.com/support/monitors
No DP Cable
?
See Troubleshooting for more information.
48 | Operating the Monitor
Setting the Maximum Resolution
To set the maximum resolution for the monitor:
In Windows® 7, Windows® 8, Windows® 8.1 and Windows® 10:
1. For Windows® 8 and Windows® 8.1 only, select the Desktop tile to switch to
classic desktop.
2. Right-click on the desktop and click Screen Resolution.
3. Click the Dropdown list of the Screen Resolution and select 2560 x 1440.
4. Click OK.
If you do not see 2560 x 1440 as an option, you may need to update your graphics
driver. Depending on your computer, complete one of the following procedures:
If you have a Dell desktop or portable computer:
∞ Go to http://www.dell.com/support, enter your service tag, and download the
latest driver for your graphics card.
If you are using a non-Dell computer (portable or desktop):
∞ Go to the support site for your computer and download the latest graphic
drivers.
∞ Go to your graphics card website and download the latest graphic drivers.
Using the Tilt, Swivel, Vertical Extension, Rotation
and Dual Monitor Setup
NOTE: This is applicable for a monitor with a stand. When any other stand is
bought, please refer to the respective stand setup guide for set up instructions.
Tilt, Swivel
With the stand attached to the monitor, you can tilt and swivel the monitor for the
most comfortable viewing angle.
5° 21°
45°45°
NOTE: The stand is detached when the monitor is shipped from the factory.
Operating the Monitor | 49
Vertical Extension
NOTE: The stand extends vertically up to 115 mm. The figure below illustrates
how to extend the stand vertically.
115mm
Rotating the Monitor
Before you rotate the monitor, your monitor should be fully vertically extended (
NOTE: The stand is detached when the monitor is shipped from the factory.) and fully
tilted up to avoid hitting the bottom edge of the monitor.
50 | Operating the Monitor
Rotate clockwise
90° 0°
Rotate counterclockwise
90° 0°
Operating the Monitor | 51
Reverse (180°) mount
NOTE: To reverse (180°) mount, remove the stand and use wall mounting
solution (optional).
180°
NOTE: To use the Display Rotation function (Landscape versus Portrait view)
with your Dell computer, you require an updated graphics driver that is not
included with this monitor. To download the graphics driver, go to www.dell.
com/support and see the Download section for Video Drivers for latest driver
updates.
NOTE: When in the Portrait View Mode, you may experience performance
degradation in graphic-intensive applications (3D Gaming and etc.).
Dual-Monitor Setup
The ability to rotate 90° clockwise, 90° counterclockwise and reverse (180°) mount
enable the thinnest borders of each monitor to be placed side by side to ensure
minimum gap between display images.
The recommended dual-monitor setup:
Landscape (side by side)
52 | Operating the Monitor
Landscape (Top-bottom)
180°
Supported by wall
mounting solution
(optional)
Portrait
90° 90°
Operating the Monitor | 53
Adjusting the Rotation Display Settings of Your
System
After you have rotated your monitor, you need to complete the procedure below to
adjust the Rotation Display Settings of your system.
NOTE: If you are using the monitor with a non-Dell computer, you need to
go the graphics driver website or your computer manufacturer website for
information on rotating the 'contents' on your display.
To adjust the Rotation Display Settings:
1. Right-click on the desktop and click Properties.
2. Select the Settings tab and click Advanced.
3. If you have an ATI graphics card, select the Rotation tab and set the preferred
rotation.
4. If you have an nVidia graphics card, click the nVidia tab, in the left-hand column
select NVRotate, and then select the preferred rotation.
5. If you have an Intel® graphics card, select the Intel graphics tab, click Graphic
Properties, select the Rotation tab, and then set the preferred rotation.
NOTE: If you do not see the rotation option or it is not working correctly, go to
www.dell.com/support and download the latest driver for your graphics card.
54 | Troubleshooting
4 Troubleshooting
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions.
Self-Test
Your monitor provides a self-test feature that allows you to check whether your
monitor is functioning properly. If your monitor and computer are properly connected
but the monitor screen remains dark, run the monitor self-test by performing the
following steps:
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer. To ensure proper Self-
Test operation, remove all Digital and the Analog cables from the back of
computer.
3. Turn on the monitor.
The floating dialog box should appear on-screen (against a black background), if the
monitor cannot sense a video signal and is working correctly. While in self-test mode,
the power LED remains white. Also, depending upon the selected input, one of the
dialogs shown below will continuously scroll through the screen.
Dell U2715H
or
Dell U2715H
or
Troubleshooting | 55
Dell U2715H
mDP Cable
or
Dell U2715H
DP Cable
4. This box also appears during normal system operation, if the video cable
becomes disconnected or damaged.
5. Turn Off your monitor and reconnect the video cable; then turn on both your
computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check
your video controller and computer, because your monitor is functioning properly.
Built-in Diagnostics
Your monitor has a built-in diagnostic tool that helps you determine if the screen
abnormality you are experiencing is an inherent problem with your monitor, or with
your computer and video card.
NOTE: You can run the built-in diagnostics only when the video cable is
unplugged and the monitor is in self-test mode.
54321
56 | Troubleshooting
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the screen).
2. Unplug the video cable(s) from the back of the computer or monitor. The
monitor then goes into the self-test mode.
3. Press and hold Button 1 and Button 4 on the front panel simultaneously for 2
seconds. A gray screen appears.
4. Carefully inspect the screen for abnormalities.
5. Press Button 4 on the front panel again. The color of the screen changes to red.
6. Inspect the display for any abnormalities.
7. Repeat steps 5 and 6 to inspect the display in green, blue, black, white and text
screens.
The test is complete when the text screen appears. To exit, press Button 4 again.
If you do not detect any screen abnormalities upon using the built-in diagnostic tool,
the monitor is functioning properly. Check the video card and computer.
Common Problems
The following table contains general information about common monitor problems
you might encounter and the possible solutions:
Common
Symptoms
What You
Experience
Possible Solutions
No Video/Power
LED off
No picture ∞ Ensure that the video cable connecting the monitor
and the computer is properly connected and
secure.
∞ Verify that the power outlet is functioning properly
using any other electrical equipment.
∞ Ensure that the power button is depressed fully.
∞ Ensure that the correct input source is selected via
the Input Source menu.
No Video/Power
LED on
No picture or no
brightness ∞ Increase brightness & contrast controls via OSD.
∞ Perform monitor self-test feature check.
∞ Check for bent or broken pins in the video cable
connector.
∞ Run the built-in diagnostics.
∞ Ensure that the correct input source is selected via
the Input Source menu.
Poor Focus Picture is fuzzy,
blurry, or ghosting ∞ Eliminate video extension cables.
∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Change the video resolution to the correct aspect
ratio.
Troubleshooting | 57
Shaky/Jittery
Video
Wavy picture or
fine movement ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Check environmental factors.
∞ Relocate the monitor and test in another room.
Missing Pixels LCD screen has
spots ∞ Cycle power On-Off.
∞ Pixel that is permanently Off is a natural defect that
can occur in LCD technology.
∞ For more information on Dell Monitor Quality and
Pixel Policy, see Dell Support site at: http://www.
dell.com/support/monitors.
Stuck-on Pixels LCD screen has
bright spots ∞ Cycle power On-Off.
∞ Pixel that is permanently off is a natural defect that
can occur in LCD technology.
∞ For more information on Dell Monitor Quality and
Pixel Policy, see Dell Support site at:http://www.
dell.com/support/monitors.
Brightness
Problems
Picture too dim or
too bright ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Adjust brightness & contrast controls via OSD.
Geometric
Distortion
Screen not
centered correctly ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Adjust horizontal & vertical controls via OSD.
Horizontal/
Vertical Lines
Screen has one or
more lines ∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Perform monitor self-test feature check and
determine if these lines are also in self-test mode.
∞ Check for bent or broken pins in the video cable
connector.
∞ Run the built-in diagnostics.
Synchronization
Problems
Screen is
scrambled or
appears torn
∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Perform monitor self-test feature check to
determine if the scrambled screen appears in self-
test mode.
∞ Check for bent or broken pins in the video cable
connector.
∞ Restart the computer in the safe mode.
Safety Related
Issues
Visible signs of
smoke or sparks ∞ Do not perform any troubleshooting steps.
∞ Contact Dell immediately.
Intermittent
Problems
Monitor
malfunctions on &
off
∞ Ensure that the video cable connecting the monitor
to the computer is connected properly and is
secure.
∞ Reset the monitor to Factory Settings(Factory
Reset).
∞ Perform monitor self-test feature check to
determine if the intermittent problem occurs in self-
test mode.
58 | Troubleshooting
Missing Color Picture missing
color ∞ Perform monitor self-test feature check.
∞ Ensure that the video cable connecting the monitor
to the computer is connected properly and is
secure.
∞ Check for bent or broken pins in the video cable
connector.
Wrong Color Picture color not
good ∞ Change the Color Setting Mode in the Color
Settings OSD to Graphics or Video depending on
the application.
∞ Try different Preset Modes in Color settings OSD.
Adjust R/G/B value in Custom Color in Color
settings OSD.
∞ Change the Input Color Format to RGB or YPbPr in
the Color settings OSD.
∞ Run the built-in diagnostics.
Image retention
from a static
image left on the
monitor for a long
period of time
Faint shadow from
the static image
displayed appears
on the screen
∞ Use the Power Management feature to turn off
the monitor at all times when not in use (for more
information, see Power Management Modes).
∞ Alternatively, use a dynamically changing
screensaver.
Wireless mouse
is not working or
lagging
Do not respond or
responds slowly ∞ Increase the distance between the USB 3.0
peripherals and the wireless USB receiver.
∞ Position your wireless USB receiver as close as
possible to the wireless mouse.
∞ Use a USB-extender cable to position the wireless
USB receiver as far away as possible from the USB
3.0 port.
Video Ghosting or
Overshooting
Moving image
appears to have
trailing shadow or
bright edge.
∞ Change the Response Time in the Display OSD to
Fast or Normal depending on your application and
usage.
Product-Specific Problems
Specific
Symptoms
What You
Experience
Possible Solutions
Screen image is
too small
Image is centered
on screen, but
does not fill entire
viewing area
∞ Check the Aspect Ratio setting in the Display
settings OSD.
∞ Reset the monitor to Factory Settings(Factory
Reset) .
Cannot adjust the
monitor with the
buttons on the
side panel
OSD does not
appear on the
screen
∞ Turn Off the monitor, unplug the power cord, plug
it back, and then turn On the monitor.
∞ Check whether the OSD menu is locked. If yes,
press and hold the button above the Power button
for 10 seconds to unlock (for more information, see
Lock).
Troubleshooting | 59
No Input Signal
when user
controls are
pressed
No picture, the
LED light is white ∞ Check the signal source. Ensure the computer is not
in the power saving mode by moving the mouse or
pressing any key on the keyboard.
∞ Check whether the signal cable is plugged in
properly. Replug the signal cable if necessary.
∞ Reset the computer or video player.
The picture does
not fill the entire
screen
The picture
cannot fill the
height or width of
the screen
∞ Due to different video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
∞ Run the built-in diagnostics.
60 | Troubleshooting
Universal Serial Bus (USB) Specific Problems
Specific
Symptoms
What You
Experience
Possible Solutions
USB interface is
not working
USB peripherals
are not working ∞ Check that your monitor is turned On.
∞ Reconnect the upstream cable to your computer.
∞ Reconnect the USB peripherals (downstream
connector).
∞ Switch Off and then turn On the monitor again.
∞ Reboot the computer.
∞ Some USB devices like external portable HDD
require higher electric current; connect the device
directly to the computer system.
High Speed USB
3.0 interface is
slow
High Speed USB
3.0 peripherals
working slowly or
not working at all
∞ Check that your computer is USB 3.0-capable.
∞ Some computers have USB 3.0, USB 2.0 and USB 1.1
ports. Ensure that the correct USB port is used.
∞ Reconnect the upstream cable to your computer.
∞ Reconnect the USB peripherals (downstream
connector).
∞ Reboot the computer.
Mobile High-Definition Link (MHL) Specific Problems
Specific
Symptoms
What You
Experience
Possible Solutions
MHL interface is
not working
Cannot see MHL
device image
shown on monitor
∞ Ensure your MHL cable and MHL device are MHL
certified.
∞ Check your MHL device is turned On.
∞ Check your MHL device is not in Standby mode.
∞ Check physical MHL cable connection is
corresponding to input source selected on OSD
Menu i.e., HDMI (MHL) 1 or HDMI (MHL) 2.
∞ Wait for 30 seconds after connecting MHL cable as
some MHL devices require longer recovery time.
Appendix | 61
5 Appendix
WARNING: Safety Instructions
WARNING: Use of controls, adjustments, or procedures other than those
specified in this documentation may result in exposure to shock, electrical
hazards, and/or mechanical hazards.
For information on safety instructions, see the Product Information Guide.
FCC Notices (U.S. Only) and Other Regulatory
Information
For FCC notices and other regulatory information, see the regulatory compliance
website located at www.dell.com/regulatory_compliance.
Contact Dell
For customers in the United States, call 800-WWW-DELL (800-999-3355).
NOTE: If you do not have an active Internet connection, you can find contact
information on your purchase invoice, packing slip, bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options.
Availability varies by country and product, and some services may not be available
in your area.
To get online Monitor support content:
1. Visit www.dell.com/support/monitors.
To contact Dell for sales, technical support, or customer service issues:
1. Visit www.dell.com/support.
2. Verify your country or region in the Choose A Country/Region drop-down
menu at the bottom of the page.
3. Click Contact Us on the left side of the page.
4. Select the appropriate service or support link based on your need.
5. Choose the method of contacting Dell that is convenient for you.
62 | Appendix
Setting Up Your Monitor
Setting the display resolution
For maximum display performance with Microsoft® Windows® operating systems, set
the display resolution to 2560 x 1440 pixels by performing the following steps:
In Windows® 7, Windows® 8, Windows® 8.1 and Windows® 10:
1. For Windows® 8 and Windows® 8.1 only, select the Desktop tile to switch to
classic desktop.
2. Right-click on the desktop and click Screen Resolution.
3. Click the Dropdown list of the Screen Resolution and select 2560 x 1440.
4. Click OK.
If you do not see the recommended resolution as an option, you may need to update
your graphics driver. Please choose the scenario below that best describes the
computer system you are using, and follow the given steps.
If you have a Dell™ desktop or a Dell™ portable computer
with internet access
1. Go to www.dell.com/support, enter your service tag, and download the latest
driver for your graphics card.
2. After installing the drivers for your graphics adapter, attempt to set the resolution
to 2560 x 1440 again.
NOTE: If you are unable to set the resolution to 2560 x 1440, please contact
Dell™ to inquire about a graphics adapter that supports these resolutions.
If you have a non Dell™ desktop, portable computer, or
graphics card
In Windows® 7, Windows® 8, Windows® 8.1 and Windows® 10:
1. For Windows® 8 and Windows® 8.1 only, select the Desktop tile to switch to
classic desktop.
2. Right-click on the desktop and click Personalization.
3. Click Change Display Settings.
4. Click Advanced Settings.
5. Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, ATI, Intel etc.).
6. Refer to the graphic card provider website for updated driver (for example,
http://www.ATI.com OR http://www.NVIDIA.com).
Appendix | 63
7. After installing the drivers for your graphics adapter, attempt to set the resolution
to 2560 x 1440 again.
NOTE: If you are unable to set the recommended resolution, please contact the
manufacturer of your computer or consider purchasing a graphics adapter that
will support the video resolution.