HP E27u Maintenance And Service Manual page 23

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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
Slow performance
from USB
Lower refresh
rate or color bits
20
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.
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 to disable the OSD
lockout function.
Press and hold the Power
button for 10 seconds to
disable the power button
lock 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.
he monitor has a two-lane
default for USB-C. On
selected products, you can
press the Joypad button to
open the OSD menu,
navigate to the USB Type-C
configuration, and then
select USB-C Video + USB 3.0
for data transfer
prioritization.

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