57
No display after powering
on
The power has not been
turned off, but after a cer-
tain period of time, there
is no display
When the battery pack is
u s e d , t h e s c r e e n i s
darker than when the AC
adaptor is connected
The cursor cannot be
controlled properly
An afterimage appears
(e.g., green, red, and blue
dots remain on the dis-
play) or there are dots not
displaying the correct
colors
The screen becomes dis-
ordered
The external display no
longer displays properly
When there is no display to an external display,
• Check your cable connection to the external display.
• Confirm your display is powered on.
• Check the settings for your external display.
Try switching the display destination by pressing Fn + F3 .
Has the computer been set to the power-saving mode?
To resume operation of your computer from the condition the power of the display
is off (for energy conservation purposes), press any key unrelated to the direct
triggering of a selection, like Ctrl .
To save power, your computer may have automatically entered the standby mode
(power indicator blinks green) or hibernation mode (power indicator turns off). In
such cases, slide the power switch.
There is a possibility that an external display is set as the display destination.
Press Fn + F3 to switch the display destination.
If you want to switch the display destination repeatedly by pressing Fn + F3 ,
make sure that the display destination has switched completely each time before
pressing Fn + F3 again.
Press Fn + F2 and adjust the brightness. Note, however, that when the bright-
ness is increased, the battery running time will become shorter.
Brightness can be set to separate levels for when the AC adaptor is connected and
when it is disconnected.
If you are using an external mouse, ensure that the external mouse has been
connected correctly.
Restart the computer by using the keyboard (Press , U , and select
[Restart] with , then press Enter ).
If the computer does not respond to keyboard commands, read “Computer hangs”
(
page 61
).
If an image is displayed for a prolonged period of time, an afterimage may appear. This is
not a malfunction. The afterimage will disappear when a different screen is displayed.
High-precision and advanced technologies are necessary in the production of
color liquid crystal displays (color LCDs). Therefore, if 0.002% or less of the pic-
ture elements either fail to light or remain constantly lit (that is, more than 99.998%
of elements are functioning properly), no defect is considered to exist.
Changing the number of colors or resolution of the display may affect the screen.
Restart the computer.
When an external display not compatible with the power saving mode is used with
the computer, the external display may no longer display properly when the com-
puter enters the condition the power of the display is off (for energy conservation
purposes). In such cases, turn off the power to the external display.
Display
Dealing with Problems
(Advanced)
Starting Up (continued)
When the previous item
is not the cause
Press F9 in the Setup Utility (
page 47
). This will restore the Setup Utility’s
settings to their default values (except the password settings).
Try removing all peripheral devices.
Check a disk error using the following procedure.
Windows 2000
1
Select [Local Disk(C:)] with the right button in [My Computer], and select [Properties].
2
Select [Tools] - [Check Now].
3
Select [Start] after selecting required items in [Check disk options].
Windows XP
1
Select [Local Disk(C:)] with the right button in [start] - [My Computer], and select [Properties].
2
Select [Tools] - [Check Now].
3
Select [Start] after selecting required items in [Check disk options].
At startup, hold down F8 when [Panasonic] screen disappears, and release your
finger when the Windows Advanced Option Menu is displayed. Start the computer
in Safe Mode, and confirm the details of the error.
