Dell U2415 Manual

							Operating the Monitor  |  51
Setting the Maximum Resolution
To set the maximum resolution for the monitor:
In Windows® 7, Windows® 8, and Windows® 8.1:
1For Windows® 8 and Windows® 8.1 only, select the Desktop tile to switch to classic 
desktop.
2Right-click on the desktop and click Screen Resolution.
3Click the Dropdown list of the Screen Resolution and select 1920 x 1200.
4Click OK.
If you do not see 1920 x 1200 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, and Vertical Extension
 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.
 NOTE: The stand is detached when the monitor is shipped from the factory. 
						

							52  |  Operating the Monitor
Vertical Extension
 NOTE: The stand extends vertically up to 115 mm. The figure below illustrates how 
to extend the stand vertically.
Rotating the Monitor
Before you rotate the monitor, your monitor should be fully vertically extended (Vertical 
Extension) and fully tilted up to avoid hitting the bottom edge of the monitor. 
						

							Operating the Monitor  |  53
Rotate clockwise
Rotate counterclockwise 
						

							54  |  Operating the Monitor Reverse (180°) mount
 NOTE: To reverse (180°) mount, remove the stand and use wall mounting solution 
(optional). 
 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) 
						

							Operating the Monitor    |   55
Landscape (Top-bottom)
Portrait
Supported by wall  
mounting solution 
(optional) 
						

							56  |  Operating the Monitor
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:
1Right-click on the desktop and click Properties.
2Select the Settings tab and click Advanced.
3If you have an ATI graphics card, select the Rotation tab and set the preferred 
rotation.
4If you have an nVidia graphics card, click the nVid ia tab, in the left-hand column 
select NVRotate, and then select the preferred rotation.
5If 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. 
						

							Troubleshooting  |  57
Tr o u b l e s h o o t i n g
 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:
1Turn off both your computer and the monitor.
2Unplug the video cable from the back of the computer. To ensure proper Self-Test 
operation, remove all digital cables from the back of computer.
3Turn 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
or 
						

							58  |  Troubleshooting
or
4This box also appears during normal system operation, if the video cable becomes 
disconnected or damaged.
5Turn 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. 
						

							Troubleshooting  |  59
To run the built-in diagnostics:
1Ensure that the screen is clean (no dust particles on the surface of the screen).
2Unplug the video cable(s) from the back of the computer or monitor. The monitor 
then goes into the self-test mode.
3Press and hold Button 1 and Button 4 on the front panel simultaneously for 2 
seconds. A gray screen appears.
4Carefully inspect the screen for abnormalities.
5Press Button 4 on the front panel again. The color of the screen changes to red.
6Inspect the display for any abnormalities.
7Repeat 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 
SymptomsWhat You 
ExperiencePossible Solutions
No Video/Power 
LED offNo 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 in the Input Source menu.
No Video/Power 
LED onNo 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 in the Input 
Source menu.
Poor FocusPicture is fuzzy, 
blurry, or 
ghosting•Eliminate video extension cables.
•Reset the monitor to factory settings.
•Change the video resolution to the correct aspect ratio.
Shaky/Jittery 
VideoWavy picture or 
fine movement•Reset the monitor to factory settings.
•Check environmental factors.
•Relocate the monitor and test in another room. 
						

							60  |  Troubleshooting
Missing PixelsLCD 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 PixelsLCD 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 
ProblemsPicture too dim 
or too bright•Reset the monitor to factory settings.
•Adjust brightness & contrast controls via OSD.
Geometric 
DistortionScreen not 
centered 
correctly•Reset the monitor to factory settings.
•Adjust horizontal & vertical controls via OSD.
Horizontal/
Vertical LinesScreen has one 
or more lines•Reset the monitor to factory settings.
•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 
ProblemsScreen is 
scrambled or 
appears torn•Reset the monitor to factory settings.
•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 
IssuesVisible signs of 
smoke or sparks•Do not perform any troubleshooting steps.
•Contact Dell immediately.
Intermittent 
ProblemsMonitor 
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.
Missing ColorPicture 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 ColorPicture color not 
good•Change the settings of the Preset Modes in the 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.