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 programme.
► End the application programme under Windows
with Alt + F4 . If the fault continues to occur after
ending the programme, switch over to the notebook's
internal LCD screen with Fn + F4 . Change the
following setting:
► Select the correct monitor or set the correct screen
resolution.
– Set the screen resolution: Select the required
screen resolution under Start – Control Panel –
Appearance and Themes Settings – Screen
resolution.
– Select monitor: Select the right monitor under
Start – Control Panel – Appearance and Themes –
Display – Settings –Advanced – Monitor.
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