Dell AW2310 Monitor - Manual (Page 33)

spots l Pixel that is permanently off is a natural defect that can occur in LCD technology.
l Run the built-in diagnostics.
Brightness Problems Picture too dim or too
bright l Reset the monitor to Factory Settings.
l Adjust brightness & contrast controls using the OSD.
Geometric Distortion Screen not centered
correctly l Reset the monitor to Factory Settings.
Horizontal/Vertical Lines Screen has one or
more lines l Reset the monitor to Factory Settings.
l 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.