User Guide

A small dot is too bright or black
Black or blank screen
Fuzzy text, blurry or stretched images
Screen flickers, unstable image
Several colored horizontal or vertical lines in the display
Screen is discolored
A message displays about No signal or Signal out of range
A message displays about Power Save, Sleep, or Suspend
General troubleshooting tips for display quality issues
This document addresses common display quality problems that can occur with flat panel LCD
display. Use the information in the following sections to troubleshoot the display problem.
A small dot is too bright or black
Due to the nature of LCD technology, a certain number of dots (pixels) might not display
correctly. If the display has too many pixel defects within a certain area, the viewer can become
distracted. For more information about pixel defects, see HP Pixel Policy.
Figure : Pixel defects
Black or blank screen
The screen remains black or blank, and there are no error messages on the screen.
note:
If the screen is black or blank, but an error message such as No Signal displays on the screen, the
problem might be related to the video signal. To troubleshoot, use the Flat Panel Monitor
Displays Message About No Signal, Signal out of Range, Sleep, or Power Save.
Figure : Blank screen