Dell UltraSharp U2422H User Manual page 88

No Video/Power
LED on
Poor Focus
Shaky/Jittery
Video
Missing Pixels
Stuck-on Pixels
│
88 Troubleshooting
No picture or no
brightness
Picture is fuzzy,
blurry, or ghosting
Wavy picture or
fine movement
LCD screen has
spots
LCD screen has
bright spots
• 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
• Eliminate video extension cables.
• Reset the monitor to factory settings.
• Change the video resolution to the
correct aspect ratio.
• Reset the monitor to factory settings.
• Check environmental factors.
• Relocate the monitor and test in
another room.
• 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:
www.dell.com/pixelguidelines.
• 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:
www.dell.com/pixelguidelines.
Input Source menu.
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