HP Point of Sale rp5000 Troubleshooting Manual page 36

Troubleshooting Without Diagnostics
Solving Display Problems (Continued)
Problem
Monitor does not function
properly when used with
energy saver features.
Dim characters.
Blurry video or requested
resolution cannot be set.
The picture is broken up, or
it rolls, jitters, or flashes.
2–20
Cause
Monitor without energy
saver capabilities is
being used with energy
saver features enabled.
The brightness and
contrast controls are not
set properly.
Cables are not properly
connected.
If the graphics
controller was
upgraded, the correct
graphics drivers may
not be loaded.
Monitor is not capable
of displaying requested
resolution.
The monitor
connections may be
incomplete or the
monitor may be
incorrectly adjusted.
Monitor needs to be
degaussed.
www.hp.com
Solution
Disable monitor energy saver
feature.
Adjust the monitor brightness and
contrast controls.
Check that the graphics cable is
securely connected to the graphics
card and the monitor.
Install the video drivers included in
the upgrade kit.
Change requested resolution.
1. Be sure the monitor cable is
securely connected to the
computer.
2. In a two-monitor system or if
another monitor is in close
proximity, be sure the monitors
are not interfering with each
other's electromagnetic field by
moving them apart.
3. Fluorescent lights or fans may
be too close to the monitor.
Degauss the monitor. Refer to the
documentation that came with the
monitor for instructions.
Troubleshooting Guide