Troubleshooting and tips
The external monitor remains blank
Cause Troubleshooting
Monitor is switched off. ► Switch the external monitor on.
Power saving has been activated
(monitor is blank).
► Press any key to continue.
Brightness is set to dark.
► Adjust the brightness of the monitor.
► Press the key combination Fn + F4 (switch screen
output).
Screen output is set to the notebook’s
LCD screen
The external monitor's power cable or
data cable is not connected properly.
► Switch off the external monitor and the notebook.
► Check whether the power cable is plugged properly
into the external monitor and into the power socket.
► Check whether the data cable is properly connected
to the notebook and the external monitor (if it is
plugged in with a connector).
► Switch on the external monitor and the notebook.
The external monitor is blank or the image is
unstable
Cause Troubleshooting
The wrong external monitor has been
selected or the wrong screen
resolution has been set for the
application program.
► End the application program under Windows
with
Alt + F4 . If the fault continues to occur after
ending the program, switch over to the notebook's
internal LCD screen with
Fn + F4 . Change the
following setting:
► Set the screen resolution: Change these settings
under
Start – (Settings) – Control Panel – Appearance
and Personalization – Personalization: Adjust screen
resolution
. to set the required screen resolution.
► Select monitor: Right click on the desktop. From the
menu click on
Personalize – Display Settings and select
monitor type 1 or 2 and then select the correct
screen under
Advanced settings – Monitor.
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