HP E24 G5 Maintenance And Service Manual page 21

Table 4-2:
Problem
Screen is blank or
video is flashing.
Image appears
blurred, indistinct, or
too dark.
Check Video Cable is
displayed on screen.
Input Signal Out of
Range is displayed
on screen.
The monitor does
not enter into a low-
power sleep state.
"OSD Lockout" is
displayed.
"Power Button
Lockout" is
displayed.
Monitor has trouble
waking from Sleep
mode
18
Solving common problems
Possible cause
Power cord is disconnected.
Monitor is turned off.
Video cable is improperly connected.
System is in Auto-Sleep Mode.
Video card is incompatible.
Brightness is too low.
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 lockout
feature is enabled..
Solution
Connect the power cord.
Power the power button.
NOTE: If pressing the Power button
has no effect, press and hold the
power button for 10 seconds to
disable the Power button lockout
feature.
Connect the video cable properly.
Press any key on the keyboard or
move the mouse to inactivate the
screen blanking utility.
Open the OSD menu and select
the Input menu. Set Auto-
Switch Input to Off and
manually select the input.
or
Replace the video card or connect
the video cable to one of the
computer's on-board video
sources
.
Open the OSD menu and select
Brightness to adjust the
brightness scale 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 select Auto-Sleep Mode
,
and set auto-sleep to On.
Press and hold the Left 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
DisplayPort inputs: Set the
DisplayPort hot-plug detection to
Always Active.
Power mode monitors: Set the
hot-plug detection to Always
Active to switch the monitor to
Performance mode.