Dell UltraSharp
U2518D/U2518DX/U2518DR
User’s Guide
Model: U2518D/U2518DX/U2518DR
Regulatory model: U2518Dt
Contents
About Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Package Contents 5
Product Features 6
Identifying Parts and Controls 7
Monitor Specifications
Plug-and-Play
LCD Monitor Quality and Pixel Policy
10
22
22
Setting Up the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Attaching the Stand 23
Using the Tilt, Swivel, and Vertical Extension 2 6
Adjusting the Rotation Display Settings of Your System 2 7
Connecting Your Monitor
Organizing Your Cables
Removing the Monitor Stand
Wall Mounting (Optional)
27
30
30
31
Operating the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Turning on the Monitor 3 2
Using the Front Panel Controls 32
Using the On-Screen Display (OSD) Menu
35
Contents
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3
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Self-Test 4 8
Built-in Diagnostics 50
Common Problems
51
Product Specific Problems 52
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Safety Instructions 54
FCC Notices (U S only) and Other Regulatory Information 54
Contacting Dell 54
Setting Up Your Monitor 55
Maintenance Guidelines
57
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Contents
About Your Monitor
Package Contents
Your monitor ships with the components shown below. Make sure that you have received all
NOTE: Some items may be optional and may not ship with your monitor.
Some features or media may not be available in certain countries.
Monitor
Stand riser
Stand base
Power cable (varies by country)
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5
USB 3.0 upstream cable (enables the
USB ports on the monitor)
DP cable (DP to mDP, only for
U2518D)
HDMI cable (U2518DX & U2518DR)
• Drivers and documentation media
• Quick Setup Guide
• Safety,Environmental,and
Regulatory Information
• Factory Calibration Report
Product Features
The Dell UltraSharp U2518D/U2518DX/U2518DR monitor has an active matrix, thinfilm
transistor (TFT), liquid crystal display (LCD), and LED backlight. The monitor features
include:
•
63.44 cm (25-inch) active area display (Measured diagonally) 2560 x 1440 resolution,
plus full-screen support for lower resolutions.
•
•
•
Wide viewing angles with 99% sRGB color.
Tilt, swivel, pivot and vertical extension adjustment capabilities.
Removable pedestal and Video Electronics Standards Association (VESA™) 100 mm
mounting holes for flexible mounting solutions.
•
•
Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier set up
with an elegant viewing experience.
Extensive digital connectivity with DP, mDP, HDMI, and USB 3.0 helps future-proof
your monitor.
•
•
•
Plug and play capability if supported by your system.
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), Dell Display Manager software application and product
documentation. Dell Display Manager included (comes in the CD attached with the
monitor).
•
•
•
•
Security lock slot.
Asset Management Capability.
Arsenic-Free glass and Mercury Free for Panel only.
Energy Gauge shows the energy level being consumed by the monitor in real time.
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About Your Monitor
•
•
•
0.5 W standby power when in the sleep mode.
Optimize eye comfort with a flicker-free screen.
The possible long-term effects of blue light emission from the monitor may cause
damage to the eyes, including eye fatigue or digital eye strain. ComfortView feature is
designed to reduce the amount of blue light emitted from the monitor to optimize eye
comfort.
Identifying Parts and Controls
Front view
Label
Description
1
Power on/off button (with LED indicator)
2
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7
Back View
Label Description
Use
1
VESA mountiong holes (100 mm
x 100 mm-behind attached VESA
cover)
Wall mount monitor using VESA-
compatible wall mount kit (100 mm x 100
mm).
2
3
4
Regulatory label
Lists the regulatory approvals.
Release stand from monitor.
Stand release button
Security lock slot
Secures monitor with security cable lock
(sold separately).
5
6
Barcode, serial number, and Service Refer to this label if you need to contact Dell
Tag label
for technical support.
Cable management slot
Use to organize cables by placing them
through the slot.
Side View
USB downstream port
Port with battery icon supports BC 1.2.
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About Your Monitor
Bottom View
Label Description
Use
1
AC power connector
To connect the monitor power cable.
Connect your computer with HDMI cable(optional).
Connect your computer with DP cable.
Connect your computer with mDP to DP cable.
2
3
4
5
HDMI connector
DP connector (in)
mDP connector (in)
DP connector (out)
DP 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
NOTE: Remove the rubber plug when use DP out
connector.
6
Audio line-out port
Connect speakers to playback audio coming through
HDMI or DP audio channels.
Only supports 2-channel audio.
NOTE: The audio line-out port does not support
headphones.
WARNING: Excessive sound pressure from
earphones or headphones can cause hearing
damage or loss.
7
8
USB upstream port
Connect the USB cable that comes with your monitor
to the computer. Once this cable is connected, you
can use the USB downstream connectors on the
monitor.
USB downstream ports (2) 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.Port with
1.2.
battery icon supports BC
9
Stand lock
Lock the stand to the monitor using a M3 x 6 mm
screw (screw not included).
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9
Monitor Specifications
Screen type
Panel Type
Active matrix - TFT LCD
In-plane switching Technology
16:9
Aspect ratio
Viewable image dimensions
Diagonal
63.44 cm (25 inches)
Active Area
Horizontal
552.96 mm (21.77 inches)
311.04 mm (12.25 inches)
171992.7 mm2 (266.59 inches2)
0.216 mm x 0.216 mm
117.5
Vertical
Area
Pixel pitch
Pixel per inch (PPI)
Viewing angle
Horizontal
Vertical
178° (typical)
178° (typical)
Brightness
350 cd/m² (typical)
Contrast ratio
1000 to 1 (typical)
Display screen coating
Anti-glare treatment of the front polarizer (3H) hard
coating
Backlight
LED
Response Time (Gray to Gray)
5 ms (FAST mode)
8 ms (NORMAL mode)
Color depth
Color gamut
16.78 million colors
99% sRGB
99% REC709
79% DCI-P3
Calibration accuracy
Connectivity
Delta E < 2 (average)
• 1 x DP 1.2 (HDCP 1.4)
• 1 x mDP 1.2 (HDCP 1.4)
• 1 x DP 1.2 (out) with MST (HDCP 1.4)
• 1 x HDMI2.0 (HDCP 2.2)
• 2 x USB 3.0 downstream port
• 2 x USB 3.0 with BC1.2 charging capability at 2A
(max)
• 1 x USB 3.0 upstream port
• 1 x Analog 2.0 audio line out (3.5mm jack)
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About Your Monitor
Border width (edge of monitor to
active area)
7.30 mm (Top)
7.30 mm (Left/Right)
8.80 mm (Bottom)
Adjustability
Height adjustable stand
Tilt
130 mm
-5° to 21°
-45° to 45°
Yes
Swivel
Cable management
Dell Display Manager (DDM)
Compatibility
Easy Arrange
and other key features
Security
Security lock slot (cable lock sold separately) Anti-
theft stand lock slot (to panel)
Resolution Specifications
Horizontal scan range
30 kHz to 140 kHz (HDMI2.0)
30 kHz to 88 kHz (Other)
Vertical scan range
56 Hz to 76 Hz
Maximum preset resolution
2560 x 1440 at 60 Hz
Video display capabilities
(DP & HDMI playback)
480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 1440p
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11
Preset Display Modes
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal/
Vertical)
720 x 400
31.5
31.5
37.5
37.9
46.9
48.4
60.0
67.5
64.0
80.0
75.0
67.5
66.58
88.8
70.0
60.0
75.0
60.3
75.0
60.0
75.0
75.0
60.0
75.0
60.0
60.0
60.0
60.0
28.3
-/+
VESA, 640 x 480
VESA, 640 x 480
VESA, 800 x 600
VESA, 800 x 600
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1152 x 864
VESA, 1280 x 1024
VESA, 1280 x 1024
VESA, 1600 x 1200
VESA, 1920 x 1080
VESA, 2048 x 1080
CVR, 2560 x 1440
25.2
31.5
-/-
-/-
40.0
+/+
+/+
-/-
49.5
65.0
78.8
+/+
+/+
+/+
+/+
+/+
+/+
+/-
+/-
108.0
108.0
135.0
162.0
148.5
147.16
241.5
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About Your Monitor
MST Multi-Stream Transport (MST) Modes
MST Source Monitor
Maximum number of external monitor that can be
supported
2560 x 1440/60 Hz
2560 x 1440/60 Hz
2
NOTE: Maximum external monitor resolution supported is 2560x1440 60Hz only.
Electrical Specifications
Video input signals
• Digital video signal for each differential line
Per differential line at 100 ohm impedance
• DP/HDMI signal input support
Input voltage/ frequency/current 100-240 VAC / 50 or 60 Hz 3 Hz / 1.6 A (maximum)
Inrush current
120 V: 40 A (Max.)
240 V: 80 A (Max.)
Physical Characteristics
Connector type
• DP connector (include DP in and DP out)
• mDP connector
• HDMI connector
• Audio line-out
• USB 3.0 upstream port connector
• USB 3.0 downstream port connector x 4
(Port with
battery icon supports BC 1.2.)
Signal cable type
DP to mDP 1.8 M cable(only for U2518D)
HDMI 1.8 M cable(U2518DX & U2518DR)
USB 3.0 1.8 M cable
Dimensions (with stand)
Height (extended)
Height (compressed)
Width
527.2 mm (20.76 inches)
397.2 mm (15.64 inches)
567.6 mm (22.35 inches)
200.1 mm (7.88 inches)
Depth
Dimensions (without stand)
Height
331.5 mm (13.05 inches)
567.6 mm (22.35 inches)
Width
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Depth
49.2 mm (1.94 inches)
Stand dimensions
Height (extended)
Height (compressed)
Width
432.7 mm (17.04 inches)
386.5 mm (15.21 inches)
292.4 mm (11.50 inches)
200.1 mm (7.88 inches)
Depth
Weight
Weight with packaging
8.33 kg (18.36 lb)
Weight with stand assembly and 6.24 kg (13.76 lb)
cables
Weight without stand assembly 3.42 kg (7.54 lb)
(For wall mount or VESA mount
considerations - no cables)
Weight of stand assembly
2.47 kg (5.45 lb)
Environmental Characteristics
Compliant Standards
ENERGY STAR certified Monitor yes
EPEAT
EPEAT Gold registered in the U.S. EPEAT registration
status by country.
TCO Certified Display
RoHS Compliant
BFR/PVC Free monitor
(excluding external cables)
Temperature
yes
yes
yes
Operating
0°C to 40°C (32°F to 104°F)
–20°C to 60°C (–4°F to 140°F)
Non-operating
Humidity
Operating
10% to 80% (non-condensing)
5% to 90% (non-condensing)
Non-operating
Altitude
Operating
5,000 m (16,404 ft) (maximum)
12,192 m (40,000 ft) (maximum)
375.32 BTU/hour (maximum)
102.36 BTU/hour (typical)
Non-operating
Thermal dissipation
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About Your Monitor
Power Management Modes
If you have VESA’s DPM-compliant video 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.
VESA
Modes
Horizontal Vertical Video Power Indicator
Power Consumption
Sync
Sync
Normal
operation
Active
Active
Active White
110 W (maximum)**
30 W (typical)
Active-off
mode
Inactive
-
Inactive Off
White
(Glowing)
Off
Less than 0.5 W
Switch off
-
-
Less than 0.3 W
Energy Star
Power Consumption
PON
23.2 W***
ETEC
72.4 kWh****
The OSD operates only in the normal operation mode. If you press any button in the active-
off mode, one of the following message is displayed:
*Zero power consumption in OFF mode can only be achieved by disconnecting
the AC mains cable from the monitor.
**Maximum power consumption with maximum luminance.
***Power consumption of on mode as defined in Energy Star 7.0 version.
****Total energy consumption in kWh as defined in Energy Star 7.0 version.
This document is informational only and reflects laboratory performance. Your product may
perform differently, depending on the software, components and peripherals you ordered
and shall have no obligation to update such information. Accordingly, the customer should
About Your Monitor
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15
not rely upon this information in making decisions about electrical tolerances or otherwise.
No warranty as to accuracy or completeness is expressed or implied.
Activate the computer and the monitor to gain access to the OSD.
NOTE: This monitor is ENERGY STAR -compliant.
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About Your Monitor
Pin Assignments
DP connector (in)
Pin number 20-pin side of the connected signal cable
1
ML3(n)
GND
2
3
ML3(p)
ML2(n)
GND
4
5
6
ML2(p)
ML1(n)
7
8
GND
9
ML1(p)
10
11
12
13
14
15
16
17
18
19
20
ML0(n)
GND
ML0(p)
CONFIG1
CONFIG2
AUX CH (p)
GND
AUX CH (n)
Hot Plug Detect
Return
DP_PWR
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DP connector (out)
Pin number 20-pin side of the connected signal cable
1
ML0(p)
GND
2
3
ML0(n)
ML1(p)
4
5
GND
6
ML1(n)
7
ML2(p)
GND
8
9
ML2(n)
ML3(p)
GND
10
11
12
13
14
15
16
17
18
19
20
ML3(n)
CONFIG1
CONFIG2
AUX CH(p)
GND
AUX CH(n)
Hot Plug Detect
Return
DP_PWR
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About Your Monitor
mDP connector
Pin number 20-pin side of the connected signal cable
1
GND
2
Hot Plug Detect
ML3 (n)
CONFIG1
ML3 (p)
CONFIG2
GND
3
4
5
6
7
8
GND
9
ML2 (n)
ML0 (p)
ML2 (p)
ML0 (p)
GND
10
11
12
13
14
15
16
17
18
19
20
GND
ML1 (n)
AUX (p)
ML1 (p)
AUX (n)
GND
DP_PWR
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HDMI connector
Pin number 19-pin side of the connected signal cable
1
TMDS DATA 2+
2
TMDS DATA 2 SHIELD
TMDS DATA 2-
3
4
TMDS DATA 1+
5
TMDS DATA 1 SHIELD
TMDS DATA 1-
6
7
TMDS DATA 0+
8
TMDS DATA 0 SHIELD
TMDS DATA 0-
9
10
11
12
13
14
15
16
17
18
19
TMDS CLOCK+
TMDS CLOCK SHIELD
TMDS CLOCK-
CEC
Reserved (N.C. on device)
DDC CLOCK (SCL)
DDC DATA (SDA)
DDC/CEC Ground
+5 V POWER
HOT PLUG DETECT
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About Your Monitor
Universal Serial Bus (USB)
This section gives you information about the USB ports available on your monitor.
NOTE: Up to 2 A on USB downstream port (port with
battery icon) with BC 1.2
compliance devices; up to 0.9 A on the other 3 USB downstream ports.
Your computer has the following USB ports:
•
•
1 upstream - bottom
4 downstream - 2 at left side, 2 at bottom
Power Charging Port - the ports with
battery icon supports fast current
charging capability if the device is BC 1.2 compatible.
NOTE: The monitor’s USB ports work 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.
Transfer speed
SuperSpeed
Hi-Speed
Data rate
5 Gbps
Power consumption
4.5 W (Max., each port)
2.5 W (Max., each port)
2.5 W (Max., each port)
480 Mbps
12 Mbps
Full speed
USB upstream port
USB downstream port
Pin number
Signal name
VBUS
Pin number
Signal name
VBUS
1
1
2
D-
2
D-
3
D+
3
D+
4
GND
4
GND
5
StdB_SSTX-
StdB_SSTX+
GND_DRAIN
StdB_SSRX-
StdB_SSRX+
Shield
5
StdA_SSRX-
StdA_SSRX+
GND_DRAIN
StdA_SSTX-
StdA_SSTX+
Shield
6
6
7
7
8
8
9
9
Shell
Shell
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Plug-and-Play
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 computer 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
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 LCD Monitor Pixel Policy, see Dell support site
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About Your Monitor
Setting Up the Monitor
Attaching the Stand
NOTE: The stand riser and stand base are detached when the monitor is shipped
from the factory.
NOTE: The procedure below is applicable for the default stand. If you purchased
any other stand, see the documentation shipped with the stand to set it up.
CAUTION: Place monitor of a flat, clean, and soft surface to avoid scratching the
display panel.
To attach the monitor stand:
1 Remove the monitor protective cover and place the monitor with its front facing
downward on it.
2 Insert the two tabs on the upper part of the stand to the groove on the back of
the monitor.
3 Press the stand down till it snaps into its place.
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23
• Hold the stand base with the triangle
mark facing upward.
• Align the stand base protruded blocks to the matching slot on the stand.
• Insert the stand base blocks fully into the stand slot.
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Setting Up the Monitor
• Lift the screw handle and turn the
screw clockwise.
• After fully tighten the screw, fold the
screw handle flat within the recess.
Setting Up the Monitor
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25
Using the Tilt, Swivel, and Vertical Extension
NOTE: This is applicable for a monitor with a stand. If you purchased any other
stand, refer to the respective stand setup guide for set up instructions.
Tilt, Swivel and Vertical Extension
With the stand attached to the monitor, you can tilt the monitor for the most comfortable
viewing angle.
NOTE: The stand is detached when the monitor is shipped from the factory.
Rotating the Monitor
Before you rotate the monitor, your monitor should be fully vertically extended and fully
tilted up to avoid hitting the bottom edge of the monitor.
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
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Setting Up the Monitor
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.).
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.
Select the Settings tab and click Advanced.
2
3
4
5
If you have an AMD graphics card, select the Rotation tab and set the preferred
rotation.
If you have an nVidia graphics card, click the nVidia tab, in the left-hand column
select NVRotate, and then select the preferred rotation.
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.
Connecting Your Monitor
WARNING: Before you begin any of the procedures in this section, follow the
To connect your monitor to the computer:
1
Turn off your computer.
2
Connect the HDMI/DP-mDP/USB cable from your monitor to
the computer. (Vertically extend and tilt the monitor completely to rotate it for
3
Switch on your monitor.
4 Select the correct input source at Monitor OSD Menu and turn on your
computer.
NOTE: U2518D/U2518DX/U2518DR default setting is DP 1.2. DP 1.1 Graphic card
may not display normally. Please refer to “product specific problems – No image when
using DP connection to the PC” to change default setting.
Setting Up the Monitor
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27
Connecting the HDMI cable(Optional)
Connecting the DP (or mDP) cable
NOTE: Default is DP port. Select input source on monitor to switch to mDP.
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Setting Up the Monitor
Connecting the monitor for DP Multi-Stream Transport (MST)
function
NOTE: Supports the DP MST feature. To make use of this feature, your PC
Graphics Card must be certified to DP1.2 with MST option.
NOTE: Remove the rubber plug when use DP out connector.
Connecting the USB cable
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29
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.
Removing the Monitor Stand
CAUTION: To prevent scratches on the LCD screen while removing the
stand, make sure that the monitor is placed on a soft, clean surface.
NOTE: The procedure below is applicable for the default stand. If you purchased
any other stand, see the documentation shipped with the stand to set it up.
To remove the stand:
1
Place the monitor on a soft cloth or cushion.
Press and hold the stand-release button.
Lift the stand up and away from the monitor.
2
3
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Setting Up the Monitor
Wall Mounting (Optional)
NOTE: Use M4 x 10 mm screws to connect the monitor to the wall-mounting kit.
Refer to the instructions that come with the VESA-compatible wall mounting kit.
1
Place the monitor on a soft cloth or cushion on a stable, flat table.
Remove the stand.
2
3
Use a Phillips crosshead screwdriver to remove the four screws securing the
plastic cover.
4
5
Attach the mounting bracket from the wall mounting kit to the monitor.
Mount the monitor on the wall by following the instructions that comes with the
wall mounting kit.
NOTE: For use only with UL or CSA or GS-listed wall mount bracket with minimum
weight/load bearing capacity of 3.42 kg (7.54 lb).
Setting Up the Monitor
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31
Operating the Monitor
Turning 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.
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Operating the Monitor
The following table describes the front panel buttons:
Front-Panel Button
1
Description
Use this button to choose from a list of preset
color modes.
Shortcut key:
Preset Modes
2
3
Use this button to choose from a list of Input Source.
Shortcut key:
Input Source
Use this menu button to launch the on-screen display
(OSD) and select the OSD menu.
Menu
Exit
4
5
Use this button to go back to the main menu or exit the
OSD main menu.
Use the Power button to turn the monitor On and Off.
The white LED indicates the monitor is On and fully
functional.
Power (with power light
indicator)
A glowing white LED indicates DPMS Power Save
Mode.
Operating the Monitor
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33
Front-Panel Button
Use the buttons on the front of the monitor to adjust the image settings.
Front Panel Button
1
Description
Use the Up (increase) and Down (decrease) keys to adjust
items in the OSD menu.
Up
Down
2
3
Use the OK button to confirm your selection.
OK
Use the Back button to go back to the previous menu.
Back
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Operating the Monitor
Using the On-Screen Display (OSD) Menu
Accessing the Menu System
NOTE: Any changes you make using the OSD menu are automatically saved if
you move to another OSD menu, exit the OSD menu, or wait for the OSD menu
to disappear.
1 Press the
button to launch the OSD menu and display the main menu.
2 Press the
and
buttons to move between options. As you move from one
icon to another, the option name is highlighted.
3 Press the
4 Press the
5 Press
or
or
buttons to select the desired parameter.
or button, according to the
button once to activate the highlighted option.
and
to enter the slide bar and then use the
indicators on the menu, to make your changes.
6 Select the
to return to previous menu or
to accept and return to previous
menu.
Operating the Monitor
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35
Icon Menu and
Submenus
Description
Brightness/
Contrast
Use this menu to activate Brightness/Contrast adjustment.
Brightness
Brightness adjusts the luminance of the backlight
(minimum 0; maximum 100).
Press the
Press the
button to increase brightness.
button to decrease brightness.
NOTE: Manual adjustment of Brightness is disabled when
Dynamic Contrast is switched on.
Contrast
Adjust the Brightness first, and then adjust Contrast only if
further adjustment is necessary.
Press the
button to increase contrast and press the
button to decrease contrast (between 0 and 100).
Contrast adjusts the difference between darkness and lightness
on the monitor.
Input Source
Use the Input Source menu to select between different
video inputs that are be connected to your monitor.
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Operating the Monitor
Icon Menu and
Submenus
Description
DP
Select DP input when you are using the DP (DisplayPort)
connector.
Use
to select the DP input source.
mDP
Select mDP input when you are using the
mDP (mini DisplayPort) connector.
Use
to select the mDP input source.
HDMI
Select the HDMI input when you are using the HDMI connector.
Use
Use
to select the HDMI input source.
Auto Select
to select Auto Select, the monitor scans for available
input sources.
Reset Input
Source
Resets your monitor’s Input Source settings to the factory
defaults.
Color
Use the Color menu to adjust the color setting mode.
Operating the Monitor
|
37
Icon Menu and
Submenus
Description
Preset Modes When you select Preset Modes, you can choose Standard,
ComfortView, Movie, Game, Color Temp. or Custom Color
from the list.
• Standard: Default color settings. This is the default preset
mode.
• ComfortView: Decreases the level of blue light emitted from
the screen to make viewing more comfortable for your eyes.
NOTE: To reduce the risk of eye strain and neck/arm/back/
shoulders pain from using the monitor for long periods of time,
we suggest you to :
•
•
•
•
•
Set the screen about 20 to 28 inches (50-70 cm) from your
eyes.
Blink frequently to moisten or rewet your eyes when working
with the monitor.
Take regular and frequent breaks for 20 minutes every two
hours.
Look away from your monitor and gaze at a distant object at
20 feet away for at least 20 seconds during the breaks.
Perform stretches to relieve tension in the neck/arm/back/
shoulders during the breaks.
• Movie: Ideal for movies.
• Game: Ideal for most gaming applications.
• Color Temp.: The screen appears warmer with a red/yellow tint
with slider set at 5,000K or cooler with blue tint with slider set
at 10,000K.
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|
Operating the Monitor
Icon Menu and
Submenus
Description
• Custom Color: Allows you to manually adjust the color settings.
Press the
and
buttons to adjust the Red, Green, and
Blue values and create your own preset color mode.
NOTE: When Smart HDR is ON, Movie and Game preset modes
will operate with backlight local dimming.
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, DP-mDP cable.
YPbPr: Select this option if your DVD player supports only
YPbPr output.
Hue
Use
or
to adjust the hue from 0 to 100.
NOTE: Hue adjustment is available only for Movie and Game
mode.
Saturation
Reset Color
Use
or
to adjust the saturation from 0 to 100.
NOTE: Saturation adjustment is available only for Movie and
Game mode.
Resets your monitor’s color settings to the factory defaults.
Operating the Monitor
|
39
Icon Menu and
Submenus
Description
Display
Use the Display menu to adjust image.
Aspect Ratio Adjust the image ratio to Wide 16:9, 4:3, or 5:4.
Sharpness
Makes the image look sharper or softer.
Use or to adjust the sharpness from ‘0’ to ‘100’.
Dynamic
Contrast
Allows you to increase the level of contrast to provide sharper
and more detailed image quality.
Push the
or “Off”.
button to select the Dynamic Contrast “On”
NOTE: For Game and Movie preset mode only.
NOTE: Dynamic Contrast provides higher contrast if you select
Game or Movie preset mode.
NOTE: when HDR is off, DCR can be set to on,otherwise can’t.
Response
Time
Allows you to set the Response Time to Normal or Fast.
MST
DP Multi Stream Transport, Set to ON enables MST(DP out), Set
to OFF disables MST function.
Smart HDR
Use
or
to enable or disable High-Dynamic Range.
Reset Display Restores the display settings to factory defaults.
40
|
Operating the Monitor
Icon Menu and
Submenus
Description
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.
Language
Rotation
Set the OSD display to one of eight languages.
(English, Spanish, French, German, Brazilian Portuguese, Russian,
Simplified Chinese, or Japanese).
Rotates the OSD by 0/90/180/270 degrees.
You can adjust the menu according to your display rotation.
Transparency
Select this option to change the menu transparency by using
and
(min. 0 / max. 100).
Timer
OSD Hold Time: Sets the length of time the OSD remains active
after you press a button.
Use the
and
buttons to adjust the slider in 1-second
increments, from 5 to 60 seconds.
Reset Menu
Restore the menu settings to factory defaults.
Operating the Monitor
|
41
Icon Menu and
Submenus
Description
Personalize
Select from Preset Modes, Brightness/Contrast, Input
Source, Aspect Ratio,Smart HDR,Rotation set as shortcut key.
Power Button Allows you to set the state of the power light to save energy.
LED
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.
Monitor
Sleep
Sleep After Timeout: Monitor goes into sleep after timeout.
Never: Monitor never goes into sleep.
Reset
Restores shortcut keys to factory defaults.
Persona-
lization
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|
Operating the Monitor
Icon Menu and
Submenus
Description
Other
Select this option to adjust the OSD settings, such as the
DDC/CI, LCD conditioning, and so on.
Display Info
DDC/CI
Displays the monitor’s current settings.
DDC/CI (Display Data Channel/Command Interface) allows you
to adjust the monitor settings using software on your computer.
Select Off to turn off this feature.
Enable this feature for best user experience and optimum
performance of your monitor.
Operating the Monitor
|
43
Icon Menu and
Submenus
Description
LCD
Helps reduce minor cases of image retention. Depending on the
Conditioning degree of image retention, the program may take some time to
run. Select On to start the process.
Firmware
Firmware version
Reset Others Restores other settings, such as DDC/CI, to factory defaults.
Factory
Reset
Restores all OSD settings to the factory defaults.
NOTE: This monitor has a built-in feature to automatically calibrate the brightness
to compensate for LED aging.
44
|
Operating the Monitor
OSD Warning Messages
When the Dynamic Contrast feature is enabled (in these preset modes: Game or Movie),
manual brightness adjustment is disabled.
When the monitor does not support a particular resolution mode, you can see the following
message:
This means that the monitor cannot synchronize with the signal that it is receiving from
addressable by this monitor. Recommended mode is 2560 x 1440.
You can see the following message before the DDC/CI function is disabled:
Operating the Monitor
|
45
When the monitor enters the Power Save mode, the following message appears:
If you press any button other than the power button, the following messages will appear
depending on the selected input:
When user try to change preset mode when Smart HDR is ON, the following message will
show:
46
|
Operating the Monitor
If either DP, mDP, HDMI input is selected and the corresponding cable is not connected, a
floating dialog box as shown below appears.
or
or
Operating the Monitor
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47
Troubleshooting
WARNING: Before you begin any of the procedures in this section, follow the
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.
or
48
|
Troubleshooting
or
4
5
This box also appears during normal system operation, if the video cable becomes
disconnected or damaged.
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.
Troubleshooting
|
49
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.
To run the built-in diagnostics:
1
Make sure that the screen is clean (no dust particles on the surface of the screen).
Unplug the video cable(s) from the back of the computer or monitor. The monitor
then goes into the self-test mode.
2
3
4
5
6
7
Press and hold Button 1 for 5 seconds. A gray screen appears.
Carefully inspect the screen for abnormalities.
Press Button 1 on the front panel again. The color of the screen changes to red.
Inspect the display for any abnormalities.
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 1 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.
50
|
Troubleshooting
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 No picture
LED off
• 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 in
No Video/Power No picture or no • Increase brightness & contrast controls via OSD.
LED on
brightness
• 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 in
Missing Pixels
LCD screen has • Cycle power on-off.
spots • Pixel that is permanently off is a natural defect
that canoccur in LCD technology.
• For more information on Dell Monitor Quality
and Pixel Policy, see Dell Support site at:
Stuck-on Pixels LCD screen has • Cycle power On-Off.
bright spots • Pixel that is permanently off is a natural defect
that canoccur in LCD technology.
• For more information on Dell Monitor Quality
and PixelPolicy, see Dell Support site at:
Brightness
Problems
Picture too dim • Reset the monitor to factory settings.
or too bright
• Adjust brightness & contrast controls via OSD.
Safety Related
Issues
Visible signs of
smoke or sparks • Contact Dell immediately.
• Do not perform any troubleshooting steps.
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.
• Perform monitor self-test feature check to
determine if the intermittent problem occurs in self-
test mode.
Troubleshooting
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51
Common
Symptoms
What You
Experience
Possible Solutions
Missing Color
Picture missing
color
• Perform monitor self-test.
• 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 • Change the settings of the Preset Modes in the
good
Color menu OSD depending on the application.
• Adjust R/G/B value under Custom. Color in Color
menu OSD.
• Change the Input Color Format to PC RGB or
YPbPr in the Color menu OSD.
• Run the built-in diagnostics.
Image retention Faint shadow
• Use the Power Management feature to turn off
the monitor at all times when not in use (for more
• Alternatively, use a dynamically changing
screensaver.
from a static
image left on
the monitor for
from the static
image displayed
appears on the
a long period of screen
time
Product Specific Problems
Specific
Symptoms
What You
Experience
Possible Solutions
Screen image is Image is
too small centered on
• Check the Aspect Ratio setting in the Display
menu OSD.
screen, but does • Reset the monitor to factory settings.
not fill entire
viewing area
No Input Signal No picture, the
• Check the signal source. Ensure the computer is
when user
controls are
pressed
LED light is white 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. Re-plug the signal cable if necessary.
• Reset the computer or video player.
The picture does The picture
not fill the entire cannot fill the
• Due to different video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
• Run the built-in diagnostics.
screen
height or width
of the screen
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|
Troubleshooting
Specific
Symptoms
What You
Experience
Possible Solutions
No image
Black screen
• Verify which DP standard (DP 1.1a or DP 1.2) is your
Graphics Card certified to. Download and install the
latest graphics card driver.
• Some DP 1.1a graphics card cannot support
DP 1.2 monitors. Go to OSD menu, under Input
Source selection, press and hold DP select
key for 8 sec to change the monitor setting from
DP 1.2 to DP 1.1a.
when using DP
connection to
the PC
Troubleshooting
|
53
Appendix
Safety Instructions
For displays with glossy bezels the user should consider the placement of the display as the
bezel may cause disturbing reflections from surrounding light and bright surfaces.
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 Safety, Environmental, and Regulatory
Information (SERI).
FCC Notices (U.S. only) and Other Regulatory
Information
For FCC notices and other regulatory information, see the regulatory compliance website
Contacting Dell
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:
To contact Dell for sales, technical support, or customer service issues:
1
2
Verify your country or region in the Choose A Country/Region drop-down menu
at the top-left corner of the page.
3
4
5
Click Contact Us next to the country dropdown.
Select the appropriate service or support link based on your need.
Choose the method of contacting Dell that is convenient for you.
54
|
Appendix
Setting Up Your Monitor
Setting Display Resolution to 2560 x 1440 (maximum)
For best performance, set the display resolution to 2560 x 1440 pixels by performing the
following steps:
In Windows Vista, Windows 7, Windows 8 or Windows 8.1:
1 For Windows 8 or 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.
In Windows 10:
1 Right-click on the desktop and click Display Settings.
2 Click Advanced display settings.
3 Click the dropdown list of Resolution and select 2560 x 1440.
4 Click Apply.
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.
Dell computer
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.
Appendix
|
55
Non-Dell computer
In Windows Vista, Windows 7, Windows 8 or Windows 8.1:
1 For Windows 8 or 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, AMD, Intel etc.).
6 Refer to the graphic card provider website for updated driver (for example,
7 After installing the drivers for your graphics adapter, attempt to set the resolution
to 2560 x 1440 again.
In Windows 10:
1 Right-click on the desktop and click Display Settings.
2 Click Advanced display settings.
3 Click Display adapter properties.
4 Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, AMD, Intel etc.).
5 Refer to the graphic card provider website for updated driver (for example,
6 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 supports
the video resolution.
56
|
Appendix
Maintenance Guidelines
Cleaning Your Monitor
WARNING: Before cleaning the monitor, unplug the monitor power cable from
the electrical outlet.
For best practices, follow these 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, soft 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.
Appendix
|
57
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