Toshiba Satellite C850 User Guide - Page 144

Keyboard problems, Display problems, You have connected an external keyboard and the operating

Page 144 highlights

144 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 F4. If this does not correct the problem, press F4 again to return the display priority to its previous setting. HINT: Pressing the F4 key several times will advance you through the display options. 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 F4 to make sure the display priority is not set for the builtin screen.

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144
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
F4
. If this does not
correct the problem, press
F4
again to return the display priority to
its previous setting.
HINT: Pressing the
F4
key several times will advance you through the
display options.
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
F4
to make sure the display priority is not set for the built-
in screen.