Panasonic Toughbook CF-53AAG711M Operating Instructions Manual page 24

Troubleshooting (Basic)
Display
The screen is dark.
The screen is disordered.
During Simultaneous dis-
play, one of the screens
becomes disordered.
The external display does
not work normally.
Touch Pad / Touchscreen (only for model with touchscreen)
The cursor does not work.
Cannot input using the
touch pad.
<Only for model with
touchscreen>
Cannot input using the
touchscreen.
Cannot point the correct
position using the included
stylus.
24
The screen is darker when the AC adaptor is not connected. Press Fn + F2 and adjust
the brightness. As you increase the brightness, battery consumption increases.
You can separately set the brightness for when the AC adaptor is connected and
when not connected.
Press Fn + F8 to turn off the concealed mode.
Changing the number of display colors and resolution may affect the screen. Restart
the computer.
Connecting/disconnecting an external display may affect the screen. Restart the
computer.
Resuming from sleep (
affect the screen of the external display. Restart the computer.
When using the Extended Desktop, use the same display colors for the external dis-
play as those used by the LCD.
If you continue to experience problems, try changing the display.
Right-click on the desktop, and click [Graphics Properties...] - [Display].
Click [start] - [Control Panel] - [Other Control Panel Options] - [Intel(R) Graphics and
Media] - [Display].
Simultaneous display cannot be used until Windows startup is complete (during
Setup Utility, etc.).
When the [Command Prompt] is set to "Full Screen" by pressing Alt + Enter, the
picture is displayed on one of the screens only. When the window display is restored
by pressing Alt + Enter, the picture is displayed on both screens.
If the external display does not support the power saving function, it may not work nor-
mally when the computer enters the power saving mode. Turn off the external display.
When using the external mouse, connect it correctly.
Restart the computer using the keyboard.
Press and press twice, and press
, U, and R to select [Restart].
Press
If the computer does not respond to keyboard commands, read "No response"
( page 25).
Set [Touch Pad] to [Enabled] in the [Main] menu of the Setup Utility.
The drivers for some mice may disable the touch pad. Check your mouse's operat-
ing instructions.
Set [Touchscreen Mode] to [Auto] or [Tablet] in the [Main] menu of the Setup Utility.
Set [Touchscreen Mode] to [Auto] or [Touchscreen Mode] in the [Main] menu of the
Setup Utility.
Perform the touchscreen calibration (
) /standby (
to select [Restart] and press Enter.
page 14).
) or hibernation may