HP ENVY 34-inch Displays User Guide 1 - Page 36

Support and troubleshooting, Solving common problems

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B Support and troubleshooting Solving common problems The following table lists possible problems, the possible cause of each problem, and the recommended solutions. Problem Possible Cause Solution Screen is blank or video is flashing. Power cord is disconnected. Power button is turned off. Connect the power cord. Press the front panel 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. Master power switch is off. Set the master power switch on the rear of the monitor to the On position. Video cable is improperly connected. Connect the video cable properly. Refer to Connecting the cables on page 6 for more information. System is in sleep mode. Press any key on the keyboard or move the mouse to inactivate the screen blanking utility. Video card compatibility. Open the OSD menu and select the Input Control menu. Set Auto-Switch Input to Off and manually select the input. Image appears too dark. Brightness is too low. Open the OSD menu and select Brightness to adjust the brightness scale as needed. No speaker volume or low speaker volume. Volume control is turned down. Adjust the volume control on the bottom left of the front panel. Volume is muted. Press up on the volume control to unmute the volume. Headphones are plugged in. Unplug the headphones. The speakers are disabled when the headphones are plugged in. Check Video Cable is displayed on screen. Monitor video cable is disconnected. Connect the appropriate video signal cable between the computer and monitor. Be sure that the computer power is off while connecting the video cable. Input Signal Out of Range is displayed on screen. Video resolution and/or refresh rate are set higher than what the monitor supports. Change the settings to a supported setting (see Recognizing preset display resolutions on page 28). The monitor is off but it did not seem to enter into a lowpower sleep mode. The monitor's power saving control is disabled. Open the OSD menu and select Power Control > Auto-Sleep Mode and set auto-sleep to On 30 Appendix B Support and troubleshooting

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B
Support and troubleshooting
Solving common problems
The following table lists possible problems, the possible cause of each problem, and the recommended
solutions.
Problem
Possible Cause
Solution
Screen is blank or video is
flashing.
Power cord is disconnected.
Connect the power cord.
Power button is turned off.
Press the front panel 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.
Master power switch is off.
Set the master power switch on the rear of the monitor to the
On position.
Video cable is improperly connected.
Connect the video cable properly. Refer to
Connecting the
cables
on page
6
for more information.
System is in sleep mode.
Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Video card compatibility.
Open the OSD menu and select the
Input Control
menu. Set
Auto-Switch Input
to
Off
and manually select the input.
Image appears too dark.
Brightness is too low.
Open the OSD menu and select
Brightness
to adjust the
brightness scale as needed.
No speaker volume or low
speaker volume.
Volume control is turned down.
Adjust the volume control on the bottom left of the front
panel.
Volume is muted.
Press up on the volume control to unmute the volume.
Headphones are plugged in.
Unplug the headphones. The speakers are disabled when the
headphones are plugged in.
Check Video Cable
is
displayed on screen.
Monitor video cable is disconnected.
Connect the appropriate video signal cable between the
computer and monitor. Be sure that the computer power is
off while connecting the video cable.
Input Signal Out of Range
is
displayed on screen.
Video resolution and/or refresh rate
are set higher than what the monitor
supports.
Change the settings to a supported setting (see
Recognizing
preset display resolutions
on page
28
).
The monitor is off but it did
not seem to enter into a low-
power sleep mode.
The monitor's power saving control is
disabled.
Open the OSD menu and select
Power Control
>
Auto-Sleep
Mode
and set auto-sleep to
On
30
Appendix B
Support and troubleshooting