Computer Screen Problems - IBM ThinkPad X40 Series Service And Troubleshooting Manual

Solving computer problems
Note: You can enter hibernation mode by pressing Fn+F12 only if the PM
Problem:
Under Windows XP, the Fn+F3 key combination does not make the
computer screen go blank.
Solution:
Windows XP enables multiple users to log on to the system at the same
time. If you are the first user to have logged on to your computer, you can
use the Fn+F3 key combination. Otherwise the combination will not work
on your computer.

Computer screen problems

Problem:
The screen is blank.
Solution:
v Press Fn+F7 to bring up the image.
v If you are using the AC adapter, or using the battery, and the battery
v If the standby status indicator is on (is green), press Fn to resume from
v If you still have the problem persists, do the Solution in the problem
Problem:
The screen is unreadable or distorted.
Solution:
Make sure that:
v The display device driver is installed correctly.
v The screen resolution and color quality are correctly set.
v The monitor type is correct.
To check these settings, do as follows:
For Windows XP and Windows 2000:
1. Right-click on the desktop, click Properties, then click the Settings tab.
2. Check whether the screen resolution and color quality are correctly set.
3. Click Advanced.
4. Click the Adapter tab.
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ThinkPad X40 Series Service and Troubleshooting Guide
driver for Windows 2000 or Windows XP has been installed.
Note: If you use the Fn+F7 key combination to apply a presentation
scheme, press Fn+F7 at least three times in three seconds, and the
image is displayed on the computer screen.
status indicator is on (is green), press Fn+Home to make the screen
brighter.
the standby mode.
below.