Users Guide

Troubleshooting │ 67
Common problems
The following table provides general information about common monitor problems
you might encounter and the possible solutions:
Common symptoms Possible solutions
No video/Power 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 pressed.
• Ensure that the correct input source is selected using the Input Source menu.
No video/Power LED on • Increase brightness and contrast controls using the 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 using the Input Source menu.
Poor focus • Eliminate video extension cables.
• Reset the monitor to Factory Settings (Factory Reset).
• Change the video resolution to the correct aspect ratio.
Shaky/Jittery video • Reset the monitor to Factory Settings (Factory Reset).
• Check environmental factors.
• Relocate the monitor and test in another room.
Missing pixels • Cycle power On-off.
• Pixel that is permanently off is a natural defect that can occur in LCD
technology.
• For more information about Dell Monitor Quality and Pixel Policy, see Dell
Support site at
www.dell.com/pixelguidelines .
Stuck-on pixels • Cycle power On-off.
• Pixel that is permanently off is a natural defect that can occur in LCD
technology.
• For more information about Dell Monitor Quality and Pixel Policy, see Dell
Support site at:
www.dell.com/pixelguidelines .
Brightness problems • Reset the monitor to Factory Settings (Factory Reset).
• Adjust brightness and contrast controls using OSD.
Geometric distortion • Reset the monitor to Factory Settings (Factory Reset).
• Adjust horizontal and vertical controls using OSD.
Horizontal/Vertical lines • Reset the monitor to Factory Settings (Factory Reset).
• Perform monitor self-test feature check and determine if these lines are also
in self-test mode.
• Check for bent or broken pins in the video cable connector.
• Run the built-in diagnostics.