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Troubleshooting
Reference Guide www.hp.com A–3
“No Signal” is
displayed on screen.
Monitor video cable is
disconnected.
Connect the 15-pin
monitor video cable
to the computer. Be
sure that the
computer power is
on.
“Out of Frequency” is
displayed on screen.
Video resolution and/or
refresh rate are set higher than
what your monitor supports.
Restart your computer
and enter Safe
Mode. Change your
settings to a
supported setting (see
“Technical
Specifications”).
Restart your computer
so that the new
settings take effect.
Monitor is
overheating.
There is not enough air space
to allow proper ventilation.
Leave at least 3
inches (76 mm) of
ventilation space
around the monitor,
and do not place
objects on top of the
monitor.
Problem Possible Cause Solution