The Notebook's Display Is Difficult To Read; Defective Pixels On The Screen; The External Monitor Stays Blank - Siemens Mobile 750 Operating Manual

Troubleshooting and tips
If the notebook is connected to a MobiDock in which a PCI VGA adapter is installed, the notebook's
display is always switched off.

The notebook's display is difficult to read

If the display is difficult to read, it can have the following reasons:
Reflexes
²²
Turn the notebook or alter tilt of the display.

Defective pixels on the screen

Pixel faults in the form of permanently lit, unlit or different-colored pixels can occur with LCD monitors.
Up to ten pixel faults on the screen does not constitute grounds for exchanging the unit. Exceptional
cases are:
•
if two pixel faults are lying directly beside each other
•
if three pixel faults occur in a 5-mm diameter circle

The external monitor stays blank

If your screen remains blank this may have the following causes:
Monitor is switched off
²²
Switch the external monitor on.
Screen has been blanked
²²
Press any key to continue.
Brightness control is set to dark
²²
Set the brightness control to light. For detailed information, please refer to the Operating Manual
supplied with your monitor.
The notebook has been configured to drive the internal display
²²
Press the key combination
CRT or LCD&CRT.
The external display's power cable or data cable is not connected properly
²²
Switch off the external monitor and the notebook.
²²
Check whether the power cable is plugged properly into the power adapter and into the power
outlet.
²²
Check whether the data cable is properly connected to the notebook and the external monitor (if it
is plugged in with a connector).
²²
Switch on the external monitor and the notebook.
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+ or change the Display Device Selection in Main Setup to
A26391-K84-Z100-1-7619