Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the
recommended solutions.
Table 4-2: Solving common problems
Problem Possible cause Solution
Screen is blank or
Power cord is disconnected. Connect the power cord.
Monitor is off. Power the power button.
NOTE: If pressing the Power
button has no effect, press
and hold the power button
for 10 seconds to disable the
Power button lockout
Video cable is improperly connected. Connect the video cable
System is in Sleep mode. Press any key on the
keyboard or move the
mouse to exit Sleep mode.
Video card is incompatible. Open the OSD menu and
select the Input Control
menu. Set Auto-
to Off and manually select
Image appears
blurred, indistinct,
or too dark.
Brightness is too low. Open the OSD menu and
select Brightness to adjust
the brightness scale as
Check Video
Cable is displayed
on screen.
Monitor video cable is disconnected. Connect the appropriate
video signal cable between
the computer and monitor.
Be sure that the computer
power is off while you
Range
Video resolution and/or refresh rate
are set higher than what the monitor
Change the settings to a
supported setting.
The monitor is off,
The monitor’s power saving control is
Open the OSD menu and