User Manual

Troubleshooting 8-6
l Make sure that both devices are compatible.
Display Problems
Nothing appears on the screen.
l During operation, the screen may automatically turn off as a result of
power management. Press any key to see if the screen comes back.
l The brightness level might be too low. Increase brightness by pressing
the Fn+F6 hot key.
l The display output might be set to an external device. To switch the
display back to the LCD, press the Fn+F9 hot key or change the display
through the settings in Display Properties.
The characters on the screen are dim.
l Adjust the brightness and/or contrast.
Bad dots appear on the display at all times.
l A small number of missing, discolored, or bright dots on the screen are
an intrinsic characteristic of TFT LCD technology. It is not regarded as
a LCD defect.
Resolution cannot be adjusted to desired setting.
l Make sure that the device driver is installed correctly.
The external monitor displays nothing.
l Make sure that the monitor is turned on.
l Make sure that the monitor’ s signal cable is properly connected.
l Switch the display to the monitor by pressing the Fn+F9 hot key or
change the display through the settings in Display Properties.
Simultaneous display/multi-display does not work.
l Make sure that you turn on the external monitor before turning on the
computer.