Keyboard Problems; Display Problems - Toshiba C845-S4230 User Manual

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If Something Goes Wrong

Keyboard problems

Keyboard problems
You have connected an external keyboard and the operating
system displays one or more keyboard error messages.
You may need to update your keyboard driver. Refer to the
documentation that came with the keyboard or to the keyboard
manufacturer's Web site.
The keyboard you connected may be defective or incompatible with
the computer. Try using a different make of keyboard.

Display problems

Here are some typical display problems and their solutions:
The screen is blank.
Display Auto Off may have gone into effect. Press any key to
activate the screen.
If you are using the built-in screen, make sure the display priority is
not set for an external monitor. To do this, press
correct the problem, press
its previous setting.
If you are using an external monitor:
❖
Check that the monitor is turned on.
❖
Check that the monitor's power cord/cable is firmly plugged
into a working power outlet.
❖
Check that the cable connecting the external monitor to the
computer is firmly attached.
❖
Try adjusting the contrast and brightness controls on the
external monitor.
❖
Press
in screen.
HINT: Pressing the
display options.
F4 to make sure the display priority is not set for the built-
again to return the display priority to
F4
key several times will advance you through the
F4
F4 . If this does not