Panasonic CF-71 Series Toughbook Reference Manual page 50

Dealing With Problems
Display
No display after powering
on
The power has not been
cut, but after a certain pe-
riod of time, there is no
display
The resolution of the dis-
play cannot be changed
An afterimage appears
(i.e., green, red, and blue
dots remain on the dis-
play) or there are dots not
displaying the correct
colors
The motion of the mouse
cursor is not smooth
The cursor does not
move in scrolling area of
the touch pad
The cursor cannot be
controlled
During simultaneous dis-
play, the screen of the ex-
ternal display becomes
disordered
The external display no
longer displays properly
The screen becomes dis-
ordered
At the time of purchase, the display setting is preset for an external display. If you
connect an external display, the screen is displayed on the external display.
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 changing the display by pressing
When displaying only through an external display, if the computer is shut down by
using the suspend or hibernation function, there will be no display on the LCD
unless the external display is connected when operations are resumed. In this
case, connect the external display.
Has the computer been set to the power-saving mode?
To resume operation of your computer from ECO mode, press any key.
To save power, your computer may have automatically entered the suspend or
hibernation mode. (
The Coffee Break Password may have been set. In such cases, perform the
following steps.
1 Press any key.
2 If the display remains dark, enter the Coffee Break Password and press Enter .
3 If the display continues to remain dark, press Enter again.
Set [None] for [Wallpaper] in [Start] - [Settings] - [Control Panel] - [Display] - [Back-
ground], and then press [OK]. Then, once again try changing the resolution. After
the change, be sure to restart the computer.
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 picture
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.
Select [Start] - [Settings] - [Control Panel] - [Mouse] - [Motion] and add the check
mark for [Show trails].
®
When the Microsoft IntelliMouse
touch pad, only scroll operations are possible for the right part or bottom part of the
touch pad. In this case, cursor operations are possible by using the work surface
excluding the right part or bottom part. When no mode is set, the entire surface of the
touch pad can be used for cursor operations.
Restart the computer by using the keyboard (e.g.,
Try changing the display by pressing
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 computer
enters the ECO mode. In such cases, turn off the power to the external display.
Changing the number of colors of the display may affect the screen. Restart the
computer.
Fn + F3 .
page 16)
TM
wheel mode or the original mode is set for the
Fn + F3 .
).
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