HP LP2275w User Manual page 42

Problem
The monitor is off but it did
not seem to enter into a low-
power sleep mode.
OSD Lockout is displayed.
Power Button Lockout is
displayed.
36 Appendix A Troubleshooting
Possible Cause
The HP Display LiteSaver may not
be compatible with the computer
system. Some notebook computers
are not compatible and the monitor
power can not be controlled.
The monitor's power saving control
is disabled.
The monitor's OSD Lockout
function is enabled.
The monitor's Power Button
Lockout function is enabled.
Solution
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.
Confirm that the HP Display LiteSaver is compatible with
the system.
1. Right-click on the HP Display LiteSaver
system tray.
2. Select Power Off Display
The monitor screen should turn off if the system is
compatible. To turn the monitor back on, wait 5 seconds
and move the mouse.
NOTE: If the monitor did not turn off, then the computer
graphics driver is not compatible with the HP Display
LiteSaver software.
Check the monitor's OSD menu setting for power saving
enable/disable controls. The control should be set to
enable to allow the monitor to enter into low-power modes.
Press and hold the Menu button for 10 seconds to disable
the OSD Lockout function.
Press and hold the power button for 10 seconds to unlock
the power button function.
icon in the
from the menu.