Dell S2718D User`s Guide
Dell S2718D
User’s Guide
Model: S2718D
Regulatory model: S2718Dt
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.
Copyright © 2017 Dell Inc. All rights reserved. This product is protected by U.S. and international
copyright and intellectual property laws.
Dell™ and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions.
All other marks and names mentioned herein may be trademarks of their respective companies.
2017 – 03 Rev. A00
Contents
About Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Identifying Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Monitor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LCD Monitor Quality and Pixel Policy . . . . . . . . . . . . . . . . . . . . . . 16
Setting Up the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using the Tilt and Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Connecting Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Operating the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Turning on the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Using the Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Using the On-Screen Display (OSD) Menu . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Built-in Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Product Specific Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Contents
| 3
FCC Notices (U.S. only) and Other Regulatory Information . . . . . . . . . 39
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Setting Up Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Maintenance Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4 |
Contents

About Your Monitor
Package Contents
Your monitor ships with the components shown below. Make sure 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.
Monitor with stand
Power cable (varies by country)
Power adapter
HDMI cable
USB Type C cable (C to C)
About Your Monitor
| 5
•Drivers and documentation media
•Quick Setup Guide
•Safety,Environmental,and
Regulatory Information
Product Features
The Dell S2718D monitor has an active matrix, thinfilm transistor (TFT), liquid crystal
display (LCD), and LED backlight. The monitor features include:
• 68.47 cm (27-inch) viewable area display (measured diagonally).
2560 x 1440 resolution with full-screen support for lower resolutions.
• Mega dynamic contrast ratio (8,000,000:1).
• Tilt and swivel adjustment capability.
• Single USB Type-C to supply power to compatible notebook while receiving video
signal and USB data.
• Plug and play capable if supported by your system.
• Optimize eye comfort with a flicker-free screen and ComfortView feature which
minimizes blue light emission.
• Adapted “High Dynamic Range” appropriate for monitor usage.
• On-screen display (OSD) adjustments for easy setup and screen optimization.
• Software and documentation media includes an information file (INF), Image‑color
matching file (ICM), and product documentation.
• Dell display manager software (available on the disc shipped with the monitor).
• Energy saver feature for energy star compliance.
• Security-lock slot.
• Capability of switching from wide aspect to standard aspect ratio while maintaining
image quality.
• BFR/PVC- Reduced(Its circuit boards are made from BFR/PVC-free laminates).
• TCO-certified displays.
• RoHS Compliant
• Arsenic-free glass and mercury-free for the panel only.
• 0.5 W standby power when in the sleep mode.
• Energy gauge shows the energy level being consumed by the monitor in real time.
• Analog backlight dimming control for flicker free display.
6 |
About Your Monitor
Identifying Parts and Controls
Front view
Label
1
2
Description
Function buttons (For more information, see Operating the Monitor)
Power on/off button (with LED indicator)
Back and Bottom View
Label
Description
Use
1
DC power connector
To connect the monitor power cable.
2
HDMI connector
Connect your computer with HDMI cable.
3
USB Type C connector
Connect your computer with USB Type C cable.
4
Security-lock slot
Secures monitor with security lock
(sold separately).
About Your Monitor
| 7
5
USB downstream ports
Connect your USB device. You can only use this
connector after you have connected the USB
Type C cable to the computer and USB Type C
connector on the monitor.
6
Audio line-out port
Connect speakers to playback audio coming
through HDMI or DP audio channels through USB
type C.
Only supports 2-channel audio.
NOTE: The audio line-out port does not support
headphones.
7
WARNING: Excessive sound pressure from
earphones or headphones can cause hearing
damage or loss.
Regulatory label,Barcode, Lists the regulatory approvals,Refer to this label if
serial number, and Service you need to contact Dell for technical support.
Tag label
NOTE: The location of rating label under the stand
base.
8 |
About Your Monitor
Monitor Specifications
Screen type
Active matrix - TFT LCD
Panel Type
In-plane switching Technology
Aspect ratio
16:9
Viewable image dimensions
Diagonal
68.47 cm (27 inches)
Active Area
Horizontal
569.736 mm (22.43 inches)
Vertical
335.664 mm (13.21 inches)
Area
191239.86 mm2 (296.30 inches2)
Pixel pitch
0.2331 mm x 0.2331 mm
Pixel per inch (PPI)
109
Viewing angle
Horizontal
Vertical
Brightness
178° (typical)
178° (typical)
300 cd/m² (typical)
Contrast ratio
1000 to 1 (typical)
8,000,000 to 1 (dynamic contrast on)
Faceplate coating
Low haze treatment of the front polarizer (3H)
Backlight
White LED, EDGELIGHT system
Response Time (Gray to Gray)
6 ms (FAST mode)
8 ms (NORMAL mode)
Color depth
16.7 million colors
Color gamut
99% sRGB
Connectivity
•1 x HDMI2.0 with HDCP2.2(combine HDMI1.4
with HDCP 1.4)
•2 x USB 3.0 downstream port
•1 x Analog 2.0 audio line out (3.5mm jack)
•1x USB Type C (Alternate mode with DP1.2, USB
3.1 upstream port ,Power Delivery PD up to 45W)
Border width (edge of monitor to
active area)
7.50 mm (Top)
7.50 mm (Left/Right)
8.05 mm (Bottom)
Adjustability
Tilt
Swivel
-5° to 21°
-45° to 45°
Dell Display Manager (DDM)
Compatibility
Easy Arrange
and other key features
Security
Security lock slot (cable lock sold separately)
About Your Monitor
| 9
Resolution Specifications
Horizontal scan range
30 kHz to 88 kHz (DP/HDMI1.4)
30 kHz to 140 kHz (HDMI2.0)
Vertical scan range
48 Hz to 75 Hz (DP/HDMI1.4/HDMI2.0)
Maximum preset resolution
2560 x 1440 at 60 Hz
Video input capabilities
(DP & HDMI playback)
480p,576p, 720p,1080p (DP/HDMI1.4/HDMI2.0)
2160p(HDMI2.0)
Preset Display Modes
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal/
Vertical)
720 x 400
31.5
70.0
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, 1920 x 1080
67.5
60.0
148.5
+/+
CVT, 2560 x 1440
88.8
60.0
241.5
+/-
10 |
About Your Monitor
Electrical Specifications
Video input signals
•Digital video signal for each differential line
Per differential line at 100 ohm impedance
•HDMI/USB Type C signal input support
AC/DC adapter:
Input voltage/
frequency/current
100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.8A (maximum)
Output voltage/current Output: 19.5 VDC /6.67 A
Inrush current
No function error,no damage
Brand
Dell
Manufacturer
Delta
Model
HA130PM130
Dell
Chicony
DA130PM130
Polarity
Physical Characteristics
Connector type
•HDMI connector
•Audio line-out
•USB Type C connector
•USB 3.0 downstream connector
Signal cable type
USB Type C to Type C 1.8 M cable
HDMI 1.8 M cable
Dimensions (with stand)
Height
453.2 mm (17.84 inches)
Width
611.8 mm (24.10 inches)
Depth
180.4 mm (7.10 inches)
Dimensions (without stand)
Height
351.3 mm (13.83 inches)
Width
611.8 mm (24.10 inches)
Depth
20.7 mm (0.81 inches)
Stand dimensions
Height
265.5 mm (10.45 inches)
Width
150.0 mm (5.91 inches)
Depth
180.4 mm (7.10 inches)
Weight
Weight with packaging
10.30 kg (22.71 lb)
Weight with stand assembly
and cables
6.85 kg (15.10 lb)
About Your Monitor
| 11
Environmental Characteristics
Temperature
Operating
Non-operating
Humidity
Operating
Non-operating
Altitude
Operating
Non-operating
Thermal dissipation
12 |
About Your Monitor
0°C to 40°C (32°F to 104°F)
–20°C to 60°C (–4°F to 140°F)
10% to 80% (non-condensing)
5% to 90% (non-condensing)
5,000 m (16,404 ft) (maximum)
12,192 m (40,000 ft) (maximum)
119.5 BTU/hour (maximum)
102.4 BTU/hour (typical)
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
Normal
operation
Active-off
mode
Horizontal Vertical Video Power Indicator
Sync
Sync
Active
Active
Active White
Inactive
Inactive Off
Switch off
-
-
-
White
(Glowing)
Off
Power Consumption
35 W (maximum)**
30 W (typical)
Less than 0.5 W
Less than 0.3 W
Energy Star
PON
Power Consumption
23.5 W***
ETEC
74.61 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 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.
About Your Monitor
| 13
NOTE: This monitor is ENERGY STAR -compliant.
Pin Assignments
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
+5 V POWER
19
HOT PLUG DETECT
14 |
About Your Monitor
USB Type C Connector
Pin
Signal Assignment
Pin
Signal Assignment
A1
GND
B12
GND
A2
TX1+
B11
RX1+
A3
TX1-
B10
RX1-
A4
VBUS
B9
VBUS
A5
CC
B8
SBU2
A6
D+
B7
D-
A7
D-
B6
D+
A8
SBU1
B5
VCONN
A9
VBUS
B4
VBUS
A10
RX2-
B3
TX2-
A11
RX2+
B2
TX2+
A12
GND
B1
GND
About Your Monitor
| 15
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 Operating the Monitor.
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 at: http://www.dell.com/support/monitors.
16 |
About Your Monitor
Setting Up the Monitor
Using the Tilt and Swivel
Tilt and Swivel
You can tilt the monitor for the most comfortable viewing angle.
Connecting Your Monitor
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions.
To connect your monitor to the computer:
1 Turn off your computer.
2 Connect the HDMI/USB Type C cable from your monitor to
the computer.
3 Switch on your monitor.
4 Select the correct input source at Monitor OSD Menu and turn on your
computer.
Setting Up the Monitor
| 17
Connecting the HDMI cable
Connecting the USB Type C cable(C to C)
NOTE:
1 Support USB Type C Alternate mode with DP 1.2, DP1.1 is not supported.
2 Support USB PD (Power Delivery) profiles up to 45W.
3 If your Notebook required >45W to operate and the battery is drained, it may not
power up or charge with S2718D USB PD.
18 |
Setting Up the Monitor
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.
Operating the Monitor
| 19
The following table describes the front panel buttons:
Front‑Panel Button
Description
1
Use this button to choose from a list of preset
color modes.
Shortcut key:
Preset Modes
2
Use this button to directly access the “Brightness/
Contrast” bar.
Shortcut key:
Brightness/Contrast
3
Menu
4
Use this menu button to launch the on-screen
display (OSD) and select the OSD menu.
See Accessing the Menu System.
Use this button to go back to the main menu or exit
the OSD main menu.
Exit
5
Power (with power light
indicator)
20 |
Use the Power button to turn the monitor On and
Off.
The white LED indicates the monitor is On and fully
functional.
A glowing white LED indicates DPMS Power Save
Mode.
Operating the Monitor
Front‑Panel Button
Use the buttons on the front of the monitor to adjust the image settings.
Front Panel Button
Description
1
Use the Up (increase) and Down (decrease) keys to adjust
items in the OSD menu.
Up
Down
2
Use the OK button to confirm your selection.
OK
3
Use the Back button to go back to the previous menu.
Back
Operating the Monitor
| 21
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
or
4 Press the
and
5 Press
or
button once to activate the highlighted option.
buttons to select the desired parameter.
to enter the slide bar and then use the
or
button, according to the
indicators on the menu, to make your changes.
6 Select the
to return to previous menu or
menu.
22 |
Operating the Monitor
to accept and return to previous
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
button to increase brightness.
Press the
button to decrease brightness.
NOTE: Manual adjustment of Brightness is disabled when
Dynamic Contrast is switched on.
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.
Contrast
Input Source
Use the Input Source menu to select between different
video inputs that are be connected to your monitor.
Operating the Monitor
| 23
Icon
Menu and
Submenus
USB Type-C
Select the USB Type-C input when you are using the USB
Type-C connector.
Use
to select the USB Type-C input source.
HDMI
Select the HDMI input when you are using the HDMI
connector.
Use
to select the HDMI input source.
Auto Select
Use
to select Auto Select, the monitor scans for available
input sources.
Resets your monitor’s Input Source settings to the factory
defaults.
Use the Color menu to adjust the color setting mode.
Reset Input
Source
Color
24 |
Description
Operating the Monitor
Icon
Menu and
Submenus
Description
Preset Modes When you select Preset Modes, you can choose Standard,
ComfortView,Multimedia,Movie,Movie HDR ,Game,Game
HDR,Warm,Cool,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.
•Multimedia: Ideal for multimedia applications.
•Movie: Loads color settings ideal for movies.
•*Movie HDR: Loads color settings ideal for movies with HDR
supporting.
•Game: Loads color settings ideal for most gaming
applications.
•*#Game HDR: Loads color settings ideal for games with HDR
supporting.
•Warm: Increases the color temperature. The screen appears
warmer with a red/yellow tint.
•Cool: Decreases the color temperature. The screen appears
cooler with a blue tint.
•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.
*HDR: Adapted “High Dynamic Range” appropriate for monitor
usage.
Operating the Monitor
| 25
Icon
Menu and
Submenus
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.
•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
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.
Reset Color
26 |
Description
Operating the Monitor
Icon
Menu and
Submenus
Description
Display
Use the Display menu to adjust image.
Aspect Ratio
Monitor
Sleep
Sharpness
Dynamic
Contrast
Adjust the image ratio to Wide 16:9, Auto Resize,or 4:3.
Sleep After Timeout: Monitor goes into sleep after timeout.
Never: Monitor never goes into sleep.
Makes the image look sharper or softer.
Use
or
to adjust the sharpness from ‘0’ to ‘100’.
Allows you to increase the level of contrast to provide sharper
and more detailed image quality.
Push the
button to select the Dynamic Contrast “On”
or “Off”.
NOTE: For Game and Movie preset mode only.
NOTE: Dynamic Contrast provides higher contrast if you
select Game or Movie preset mode.
Allows you to set the Response Time to Normal or Fast.
Response
Time
Reset Display Restores the display settings to factory defaults.
Operating the Monitor
| 27
Icon
Menu and
Submenus
Description
Energy
Power
Button LED
USB
Allows you to set the state of the power light to save energy.
Allows you to enable or disable USB charger function during
monitor standby mode.
NOTE: USB ON/OFF under standby mode is only available
when the USB Type-C cable is unplugged. This option will be
greyed out when the USB Type-C cable plugs in.
Reset Energy Select this option to restore default Energy settings.
Menu
28 |
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.
Operating the Monitor
Icon
Menu and
Submenus
Description
Language
Set the OSD display to one of eight languages.
(English, Spanish, French, German, Brazilian Portuguese,
Russian, Simplified Chinese, or Japanese).
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.
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 OSD menu) or hard
lock (Press and hold the exit button 6 sec)
Unlock function – Only hard unlock (Press and hold the exit
button 6 sec)
Reset Menu
Restore the menu settings to factory defaults.
Personalize
Select from Preset Modes, Brightness/Contrast, Input Source,
Aspect Ratio set as shortcut key.
Reset
Personalization
Restores shortcut keys to factory defaults.
Operating the Monitor
| 29
Icon
Menu and
Submenus
Description
Other
DDC/CI
30 |
Select this option to adjust the OSD settings, such as the
DDC/CI, LCD conditioning, and so on.
DDC/CI (Display Data Channel/Command Interface) allows
you to adjust the monitor settings using software on your
computer.
Select Disable to turn off this feature.
Enable this feature for best user experience and optimum
performance of your monitor.
Operating the Monitor
Icon
Menu and
Submenus
Description
LCD
Helps reduce minor cases of image retention. Depending on
Conditioning the degree of image retention, the program may take some
time to run. Select Enable to start the process.
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.
Operating the Monitor
| 31
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
the computer. See Monitor Specifications for the Horizontal and Vertical frequency
ranges addressable by this monitor. Recommended mode is 2560 x 1440.
You can see the following message before the DDC/CI function is disabled:
When the monitor enters the Power Save mode, the following message appears:
32 |
Operating the Monitor
Activate the computer and wake up the monitor to gain access to the OSD.
If you press any button other than the power button, the following messages will appear
depending on the selected input:
When using the wrong Adapter or Adapter connection exception,you can see the
following message:
If either USB Type-C, HDMI input is selected and the corresponding cable is not
connected, a floating dialog box as shown below appears.
or
See Troubleshooting for more information.
Operating the Monitor
| 33
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.
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.
34 |
Troubleshooting
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.
To run the built-in diagnostics:
1 Make sure 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 for 5 seconds. A gray screen appears.
4 Carefully inspect the screen for abnormalities.
5 Press Button 1 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 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.
Troubleshooting
| 35
Common Problems
The following table contains general information about common monitor problems you
might encounter and the possible solutions:
Common
What You
Symptoms
Experience
No Video/Power No picture
LED off
Possible Solutions
•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
the Input Source menu.
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
the Input Source menu.
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:
http://www.dell.com/support/monitors.
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:
http://www.dell.com/support/monitors.
Brightness
Picture too dim •Reset the monitor to factory settings.
Problems
or too bright
•Adjust brightness & contrast controls via OSD.
Safety Related
Visible signs of
•Do not perform any troubleshooting steps.
Issues
smoke or sparks •Contact Dell immediately.
Intermittent
Monitor
•Ensure that the video cable connecting the
Problems
malfunctions on monitor to the computer is connected properly
& off
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.
36 |
Troubleshooting
Common
Symptoms
What You
Experience
Missing Color
Picture missing
color
Possible Solutions
•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
•Change the settings of the Preset Modes in the
not 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
from a static
from the static
the monitor at all times when not in use (for more
image left on
image displayed information, see Power Management Modes).
the monitor for appears on the •Alternatively, use a dynamically changing
a long period of screen
screensaver.
time
Product Specific Problems
Specific
Symptoms
Screen image is
too small
What You
Experience
Image is
centered on
screen, but does
not fill entire
viewing area
Cannot adjust
OSD does not
the monitor
appear on the
with the buttons screen
on the front
panel
No Input Signal
when user
controls are
pressed
No picture,
the LED light is
white
The picture
does not fill the
entire screen
The picture
cannot fill the
height or width
of the screen
Possible Solutions
•Check the Aspect Ratio setting in the Display
menu OSD.
•Reset the monitor to factory settings.
•Turn off the monitor, unplug the monitor power
cable, plug it back, and then turn on the monitor.
•Check whether the OSD menu is locked. If yes,
press and hold the button beside the power
button for 6 seconds to unlock (for more
information, see Lock).
•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. Re-plug the signal cable if necessary.
•Reset the computer or video player.
•Due to different video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
•Run the built-in diagnostics.
Troubleshooting
| 37
Specific
What You
Symptoms
Experience
No image when Black screen
using USB Type
C connection
to PC or
Notebook.
No charging
when using
USB Type C
connection to
the Notebook
38 |
No charging
Troubleshooting
Possible Solutions
•Verify if the PC or Notebook USB Type C interface
can support Alternate mode DP1.2.
•Verify if the Notebook required >45W power
charging.
•USB Type C interface of PC or Notebook can not
support Alternate mode DP1.2.
•The Notebook required >45W power charging.
•Verify if the Notebook can support one of
5V/9V/15V/20V charging profiles.
•Verify if the Notebook required >45W power
charging.
•The Notebook can not support 5V/9V/15V/20V
charging profiles or Need >45W power charging.
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 located at www.dell.com/regulatory_compliance.
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:
See www.dell.com/support/monitors.
To contact Dell for sales, technical support, or customer service issues:
1 Go to www.dell.com/support.
2 Verify your country or region in the Choose A Country/Region drop-down menu
at the top-left corner of the page.
3
Click Contact Us next to the country dropdown.
4
Select the appropriate service or support link based on your need.
5
Choose the method of contacting Dell that is convenient for you.
Appendix
| 39
Setting Up Your Monitor
NOTE: The maximum input resolution to 3840 x 2160 while you select movie HDR
or game HDR in Color on OSD functions can be supported.
Setting Display Resolution to 2560 x 1440
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
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.
40 |
Appendix
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,
http://www.AMD.com or http://www.NVIDIA.com).
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,
http://www.AMD.com or http://www.NVIDIA.com).
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.
Appendix
| 41
Maintenance Guidelines
Cleaning Your Monitor
WARNING: Before cleaning the monitor, unplug the monitor power cable from
the electrical outlet.
CAUTION: Read and follow the Safety Instructions before cleaning the monitor.
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.
42 |
Appendix
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