72 │ Troubleshooting
Common
Symptoms
What you
experience
Possible Solutions
Missing pixels LCD 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:
www.dell.com/pixelguidelines.
Stuck-on pixels LCD 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:
www.dell.com/pixelguidelines.
Brightness
problems
Picture too dim or
too bright
• Reset the monitor to factory settings
(Factory Reset).
• Adjust brightness and contrast controls
through OSD.
Geometric
distortion
Screen not
centered correctly
• Reset the monitor to factory settings
(Factory Reset).
• Adjust horizontal and vertical controls
through OSD.
Horizontal or
vertical lines
Screen has one or
more 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.