HP 18XL381 Display Solutions, Display Problem Probable Cause Solutions, Using Fn+F7 or Fn+F8

Presario 1800/1800T Series

Models: XL280, XL380, XL381,

and XL390

Diskette Drive

Problem	Probable Cause	Solution(s)
Diskette drive cannot	Diskette is not formatted.	Format the diskette. At the
read a diskette.		system prompt, enter
		FORMAT A:
Cannot boot from	Bootable diskette is not in the	Put the bootable diskette in the
diskette.	diskette drive.	diskette drive.
	Diskette Boot has incorrect	Run Setup and set diskette as first
	setting in Setup.	to boot.

Display Solutions

This section lists some causes and solutions for common Notebook display and external monitor problems.

You can perform a monitor self-test on an external VGA color or monochrome monitor by completing the following steps:

1.Turn off the monitor. 2.Turn off the Notebook.

3.Disconnect the monitor signal cable from the Notebook. 4.Turn on the monitor and allow it to warm up for one minute.

The display should be white. A narrow black border may also appear on the left and right sides of the display. Either of these displays indicates that the monitor is working properly.

Display

Problem	Probable Cause	Solution(s)
Screen is dim.	Brightness control	Adjust the display brightness by
	(if applicable) is not set	using Fn+F7 or Fn+F8.
	properly.
	The Notebook display is in	Tilt the display or move the
	direct sunlight.	Notebook.
Screen is blank.	Screen saver was initiated or	Press any key or touch the
	display was turned off by	TouchPad.
	Power Management due to
	lack of user activity.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES TROUBLESHOOTING 23