Fujitsu Lifebook L470 Manual page 168

S e c t i o n S i x
Symptom
The display goes blank by itself after you have
been using it.
The Built-in Display does not close.
The Built-in Display has bright or dark spots.
The application display uses only a portion of
your screen and is surrounded by a dark band.
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Possible Cause
1. The notebook has gone into Video timeout,
Standby mode, Suspend mode or Save-to-
Disk mode because you have not used it for
a period of time.
2. Something is pushing on the Closed Cover
switch. (Figure 1-4 on page 5.)
1. A foreign object, such as a paper clip, is stuck
between the display and the keyboard.
1. If the spots are very tiny and few in number,
this is normal for a large LCD display.
2. If the spots are numerous or large enough to
interfere with your operation needs.
1. You are running an application that does not
support 1024 x 768 pixel resolution display
and display compensation is displayed.
Possible Solution
1. Use the keyboard or pointer and if that does
not restore operation, push the Suspend/
Resume button. You may want to change your
PowerPanel settings (pages 51-54) or close
your application and go to the setup utility
Power Savings menu (pages 98-102) and
adjust the timeout values to better
suit your needs.
2. Clear the Closed Cover switch.
1. Remove all foreign objects from
the keyboard.
1. This is normal; do nothing.
2. Display is faulty; contact your
support representative.
1. Display compression gives a clearer but smaller
display for applications that do not support
1024 x 768 pixel resolution. You can fill the
screen but have less resolution by changing your
display compression setting. (See Video Features
Submenu of the Advanced Menu on pages 86-87.)