User’s Guide

Trou b l es ho oting 63
Missing Pixels LCD screen has
spots
Turn the monitor off and then on
again.
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
Turn the monitor off and then on
again.
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.
Adjust brightness and contrast
controls via 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.
Invoke the self-test feature (see Self-
test) and determine if these lines are
also flagged in the self-test mode.
Check for bent or broken pins in the
video cable connector.
Run the built-in diagnostics.