Fujitsu N6420 manual Setup Utility page 29 for more information, page 51 for more information

L i f e B o o k N 6 4 0 0 S e r i e s U s e r ’ s G u i d e

Problem	Possible Cause	Possible Solutions
The display goes blank by	The power management time-	Press any button or key on the keyboard, or move the
itself after it is used.	outs may be set for very short	mouse to restore operation. If that fails, push the
(continued)	intervals and you failed to	Power and Suspend/Resume button. (The display
	notice the display come on	may be shut off by Standby Mode, Auto Suspend or
	and go off again.	Video Timeout.)
The built-in display does	A foreign object, such as a	Remove all foreign objects from the keyboard.
not close.	paper clip, is stuck between the
	display and the keyboard.
The built-in display has	If the spots are very tiny and	This is normal; do nothing.
bright or dark spots.	few in number, this is normal
	for a large LCD display.
	If the spots are numerous or	Display is faulty; contact your support representative.
	large enough to interfere with
	your operation needs.
You have connected an	Your external video device is	See your monitor documentation and the External
external video device and it	not compatible with your Life-	Monitor Support portions of the Specifications
does not come on.	Book notebook.	section on page 75.
The application display	You are running an application	Display compression gives a clearer but smaller
uses only a portion of your	that does not support 800 x	display for applications that do not support 800 x
screen and is surrounded	600 pixel resolution display	600 pixel resolution. You can fill the screen but have
by a dark frame.	and display compression is	less resolution by changing your display compres-
	enabled.	sion setting, (See Video Features submenu, located
		within the Advanced menu of the BIOS.) (See BIOS
		Setup Utility page 29 for more information)
You have connected an	Your BIOS setup is not set to	Toggle the video destination by pressing [Fn] and
external video device and it	enable your external device.	[F10] together, or check the BIOS setup and enable
does not display any		your external video device. (See Video Features
information.		submenu, located within the Advanced Menu of the
		BIOS.) (See BIOS Setup Utility page 29 for more
		information)
	Your external video device is	Reinstall your device. (See External Video Port
	not properly installed.	page 51 for more information)
	Your operating system soft-	Check your device and operating system
	ware is not set up with the	documentation and activate the proper driver.
	correct driver for that device.
Miscellaneous Problems
Error message is displayed	Application software often	See your application manual and help displays
on the screen during the	has its own set of error	screens for more information. Not all messages are
operation of an application.	message displays.	errors some may simply be status.

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