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26
Troubleshooting
n
Display
The screen is dark.
l
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.
l
Press
Fn
+
F8
to turn off the concealed mode.
The screen does not be-
come bright even if pressing
Fn
+
F2
.
l
The brightness is set low to avoid malfunction where surrounding temperature is high.
Use it in an environment of between -10 °
C
and 50 °
C
.
The screen is disordered.
l
Changing the number of display colors and resolution may affect the screen. Restart the
computer.
l
Connecting/disconnecting an external display may affect the screen. Restart the computer.
<Only for model with dis-
crete video controller>
“The application is not cur-
rently associated with a
specific graphics processor.”
is displayed when quitting
an application program or
screen saver that uses 3D
graphics.
l
Click [Configure]. The [Catalyst Control Center] screen appears. To run the program or
screen saver while activating the discrete video controller, select [High Performance] for
the program listed on [Recent Applications]. If you want to run the program without acti-
vating the discrete video controller, select [Power Saving] instead of [High Performance].
If you do not select either [High Performance] or [Power Saving] (the status remains “Not
Assigned”), the program will run as if you had selected [Power Saving].
Also, you can right-click the desktop and select [Configure Switchable Graphics] on the
menu to display the [Catalyst Control Center] screen. This enables you to assign an ap-
plication program to either [High Performance] or [Power Saving] in advance by select-
ing [Other Applications] - [Browse].
During Simultaneous display,
one of the screens becomes
disordered.
l
When using the Extended Desktop, use the same display colors for the external display
as those used by the LCD.
l
If you continue to experience problems, try changing the display.
Click
(Start) - [All Programs] - [Panasonic] - [Display Selector].
l
Simultaneous display cannot be used until Windows startup is complete (during Setup
Utility, etc.).
The external display does
not work normally.
l
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.
<Only for model with GPS>
The cursor cannot be con-
trolled properly.
l
Operate the following steps.
A
Restart the computer and press
F2
or
Del
while [Panasonic] boot screen is dis-
played.
B
Set [GPS] to [Disabled] in the sub-menu of [Serial and Parallel Port Settings] in the
[Advanced] menu of the Setup Utility.
C
Press
F10
and select [Yes] at the confirmation message, and press
Enter
.
The computer will restart.
D
Log on to Windows as an administrator.
E
Click
(Start) and input “c:\util\drivers\gps\GPS.reg” in [Search programs and
files], and press
Enter
.
F
Click [Yes], click [Yes] and click [OK].
Then restart the computer.
G
Press
F2
while [Panasonic] boot screen is displayed.
H
Set [GPS] to [Enabled] in the sub-menu of [Serial and Parallel Port Settings] in the
[Advanced] menu.
I
Press
F10
and select [Yes] at the confirmation message, and press
Enter
.
n
Touch Pad / Touchscreen (only for model with touchscreen)
The cursor does not work.
l
When using the external mouse, connect it correctly.
l
Restart the computer using the keyboard.
Press and press
è
twice, and press
to select [Restart] and press
Enter
.
l
If the computer does not respond to keyboard commands, read “No response”
(
è
page 27).
Cannot input using the touch
pad.
l
Set [Touch Pad] to [Enable] in the [Main] menu of the Setup Utility.
l
The drivers for some mice may disable the touch pad. Check your mouse’s operating instructions.
<Only for model with touch
screen>
Cannot input using the
touchscreen.
l
Set [Touchscreen Mode] to [Auto] or [Tablet] in the [Main] menu of the Setup Utility.
Troubleshooting (Basic)
DFQW5712YAT_CF-31mk3_7_OI_EN.indb 26
2013/06/21 10:10:21