HP L1506 15-inch User Manual page 41

Problem
"Out of Range. Set
Monitor to 1280 x
1024 @ 60Hz" is
displayed on screen.
HP Display LiteSaver
doesn't turn off the
monitor screen
User Guide
Possible Cause
Video resolution and/or
refresh rate are set
higher than what your
monitor supports.
The Activity Extension
time has not elapsed.
Troubleshooting
Solution
Restart your computer and
enter Safe Mode. Change
your settings to a supported
setting (see "Factory Preset
Display Modes" table in
Appendix B). Restart your
computer so that the new
settings take effect.
The default Activity
Extension value is set to 10
minutes. The HP Display
LiteSaver will wait to detect
no input or movement from
the keyboard or mouse for
10 consecutive minutes after
the Display Off time has
passed, before the monitor
enters into low-power mode.
For example, if the Display
Off time is set to 5 minutes
from the current time and the
Activity Extension is set to
10 minutes, the HP Display
LiteSaver will not actually
turn off the display until 10
minutes of inactivity has
elapsed, even though the
Display Off time is 5 minutes
from now.
A–3