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,...

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...

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...

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...

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...

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...

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,...