HP E20 User Guide - Page 37

Support and troubleshooting, Solving common issues

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3 Support and troubleshooting Solving common issues The following table lists possible issues, the possible cause of each issue, and the recommended solutions. Table 3-1 Common issues and solutions Issue Possible cause Solution Screen is blank or video is flashing. Power cord is disconnected. Connect the monitor power cord. Monitor is off. Press the monitor power button. Video cable is improperly connected. Connect the video cable properly. For more information, see Connecting the cables on page 9. System is in Auto-Sleep Mode. Press any key on the keyboard or move the mouse to inactivate the screen blanking utility. Video card is incompatible. Open the OSD menu and select the Input menu. Set AutoSwitch Input to Off and manually select the input. or Replace the video card or connect the video cable to one of the computer's onboard video sources. Image appears too dark. Brightness setting is too low. Open the OSD menu and select Brightness to adjust the brightness scale as needed. "Input Signal Not Found" is displayed on the 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 when connecting the video cable. "Input Signal Out of Range" is Video resolution and/or refresh rate displayed on the screen. are set higher than the monitor supports. Change the settings to a supported setting. See Preset display resolutions on page 35 for more information. The monitor does not enter The monitor's power saving control is Open the OSD menu and select Power, select Auto-Sleep into a low-power sleep state. disabled. Mode, and then set auto-sleep to On. The monitor's camera does not work when you use Windows Hello. The monitor camera is not set as the Configure the monitor camera. For more information, see default. Using the camera on page 23. The power light is off. The docking monitor is not connected Connect the power cord to the docking station and to an AC to AC power. outlet. The ports or jacks on the The docking monitor is not connected Connect the power cord to the docking station and to an AC docking station do not work. to AC power. outlet. The docking monitor is not connected Disconnect the USB cable from the computer, and then to the computer correctly. reconnect it. Disconnect the USB cable from the computer, and then reconnect it. The USB device attached to the port is not compliant with the docking monitor power specifications and is using too much power. Disconnect the device that disabled the port. Disconnect the power cord from the docking monitor, and then reconnect it. Solving common issues 29

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3
Support and troubleshooting
Solving common issues
The following table lists possible issues, the possible cause of each issue, and the recommended solutions.
Table 3-1
Common issues and solutions
Issue
Possible cause
Solution
Screen is blank or video is
flashing.
Power cord is disconnected.
Connect the monitor power cord.
Monitor is off.
Press the monitor power button.
Video cable is improperly connected.
Connect the video cable properly. For more information, see
Connecting the cables
on page
9
.
System is in Auto-Sleep Mode.
Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Video card is incompatible.
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 onboard video sources.
Image appears too dark.
Brightness setting is too low.
Open the OSD menu and select
Brightness
to adjust the
brightness scale as needed.
“Input Signal Not Found” is
displayed on the 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
when connecting the video cable.
“Input Signal Out of Range” is
displayed on the screen.
Video resolution and/or refresh rate
are set higher than the monitor
supports.
Change the settings to a supported setting. See
Preset display
resolutions
on page
35
for more information.
The monitor does not enter
into a low-power sleep state.
The monitor's power saving control is
disabled.
Open the OSD menu and select
Power
, select
Auto-Sleep
Mode
, and then set auto-sleep to
On
.
The monitor’s camera does
not work when you use
Windows Hello.
The monitor camera is not set as the
default.
Configure the monitor camera. For more information, see
Using the camera
on page
23
.
The power light is off.
The docking monitor is not connected
to AC power.
Connect the power cord to the docking station and to an AC
outlet.
The ports or jacks on the
docking station do not work.
The docking monitor is not connected
to AC power.
Connect the power cord to the docking station and to an AC
outlet.
The docking monitor is not connected
to the computer correctly.
Disconnect the USB cable from the computer, and then
reconnect it.
Disconnect the USB cable
from the computer, and then
reconnect it.
The USB device attached to the port
is not compliant with the docking
monitor power specifications and is
using too much power.
Disconnect the device that disabled the port.
Disconnect the power cord from the docking monitor, and
then reconnect it.
Solving common issues
29