Dell UltraSharp 49 U4924DW 49" WQHD Ultrawide Curved Monitor - Manual (Page 96)

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Troubleshooting
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:
http://
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:
http://
www.dell.com/pixelguidelines .
Brightness
Problems Picture too dim or
too bright • Reset the monitor to factory settings.
• Adjust brightness & contrast controls
using the OSD.
Geometric
Distortion Screen not
centered correctly • Reset the monitor to factory settings.
Horizontal/
Vertical Lines Screen 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.