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Panasonic Toughbook CF-U1AQB1G2M Operating Instructions Manual page 44

Panasonic toughbook cf-u1aqb1g2m: user guide
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Troubleshooting (Basic)
The screen is dark.
The LCD brightness
changes a number
of times when the
AC adaptor is dis-
The screen is disor-
During Simultane-
ous display, one of
the screens be-
comes disordered.
The external display
does not work nor-
When the computer
starts up, simultane-
ous display be-
comes active.
The screen is darker when the AC adaptor is not connect-
ed. Press
you increase the brightness, battery consumption increas-
You can separately set the brightness for when the AC
adaptor is connected and when not connected.
For Numeric keyboard model:
Intel(R) Display Power Saving Technology is active and
automatically changes the LCD brightness. This is not a
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.
Simultaneous display cannot be used until Windows
startup is complete (during Setup Utility, etc.).
When using the Extended Desktop, use the same display
colors for the external display as those used by the LCD.
If you continue to experience problems, try changing the
Right-click on the desktop, and click [Graphics Properties]
- [Display Devices].
If the [Command Prompt ] is displayed in full-screen,
reduce the display size.
If the external display does not support the power saving
function, it may not work normally when the computer enters
the power saving mode. Turn off the external display.
When simultaneous display is activated, press
to switch the display.
For Numeric keyboard model:
and adjust the brightness. As



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