Dell S2240L User Manual page 41

Stuck-on Pixels LCD screen has bright
spots
Brightness Problems Picture too dim or too
bright
Geometric Distortion Screen not centered
correctly
Horizontal/Vertical Lines Screen has one or more
lines
Synchronization Problems Screen is scrambled or
appears torn
Safety-Related Issues Visible signs of smoke or
sparks
Intermittent Problems Monitor malfunctions on &
off
Missing Color Picture missing color
Wrong Color Picture color not good
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:
support.dell.com.
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:
support.dell.com.
Reset the monitor to Factory Settings.
Auto Adjust via OSD.
Adjust brightness & contrast controls via OSD.
Reset the monitor to Factory Settings.
Auto Adjust via OSD.
Adjust brightness & contrast controls via OSD.
NOTE: When using 'HDMI', the positioning adjustments are not available.
Reset the monitor to Factory Settings.
Perform Auto Adjust via OSD.
Adjust Phase and Pixel Clock controls via OSD.
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.
NOTE: When using 'HDMI', the Pixel Clock and Phase adjustments are not available.
Reset the monitor to Factory Settings.
Perform Auto Adjust via OSD.
Adjust Phase and Pixel Clock controls via OSD.
Perform monitor self-test feature check to determine if the scrambled screen appears in
self-test mode.
Check for bent or broken pins in the video cable connector.
Restart the computer in the safe mode.
Do not perform any troubleshooting steps.
Contact Dell immediately.
Ensure that the video cable connecting the monitor to the computer is properly connected
and is secured.
Reset the monitor to Factory Settings.
Perform monitor self-test feature check to determine if the intermittent problem occurs in
self-test mode.
Perform monitor self-test feature check.
Ensure that the video cable connecting the monitor to the computer is properly connected
and is secured.
Check for bent or broken pins in the video cable connector.
Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color
Settings OSD if the Color Management is turned off.
Change the Input Color Format to RGB or YPbPr in Color settings OSD.