HP X24c Maintenance And Service Manual page 21

dark.
Check Video
Cable is
displayed on
screen.
Input Signal
Out of Range is
displayed on
screen.
The monitor is
off, but it did not
seem to enter
into Sleep
mode.
On-Screen
Menus are
Locked is
displayed.
Power Button
is Locked is
Displayed
18
Monitor video cable is disconnected.
Video resolution and/or refresh rate are set
higher than what the monitor supports.
The monitor's power saving control is disabled.
The monitor's OSD lock function is enabled.
The monitor's power button is locked.
as needed.
Connect the appropriate
video signal cable
between the computer and
monitor. Be sure that the
computer power is off
while you connect the
video cable.
Change the settings to a
supported setting.
Open the OSD menu and
select Power Control >
Auto-Sleep Mode and set
auto-sleep to On.
Press and hold the Menu
button on the front bezel to
10 seconds to disable the
OSD lockout function.
Press and hold the power
button for 10 seconds to
disable the power button
lock function.