Lenovo ThinkPad R40 English - Service and Troubleshooting Guide for R40, R40e - Page 36

Computer screen problems, Problem, Solution, For Windows, Display, Settings, Advanced, Adapter - drivers windows 7

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Solving computer problems Computer screen problems Problem: The screen is blank. Solution: v If the standby status indicator is on (in green), press Fn to resume from the standby mode. v If you are using the ac adapter, or using the battery, and the battery status indicator is on (in green), press Fn+Home to make the screen brighter. v If you attach an external monitor to your computer, press Fn+F7 to switch the screen output location. v If the problem persists, do the "Solution" in the problem below. Problem: The screen is unreadable or distorted. Solution: Make sure that: v The display device driver is installed correctly. v The display resolution and color depth are correctly set. v The monitor type is correct. To check these settings, do as follows: For Windows® 2000 and Windows® 98: 1. Double-click Display in the Control Panel. The Display Properties window opens. 2. Click the Settings tab. 3. Check if the color depth and resolution are correctly set. 4. Click Advanced. 5. Click the Adapter tab. 6. Make sure "ATI Mobility RADEON" or "ATI Mobility RADEON 7500" is shown in the adapter information window. 7. Click the Monitor tab. 8. Make sure the Monitor type is correct. For Windows® XP: 1. Click Start. 2. Click Control Panel. 3. Click Appearance and Themes in the Pick a category section. 4. Click Display in the Pick a Control Panel icon section. 5. Click the Settings tab. 6. Check whether the color depth and resolution are correctly set. 24 ThinkPad® R40 Series Service and Troubleshooting Guide

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Computer screen problems
Problem:
The screen is blank.
Solution:
v
If the standby status indicator is on (in green), press Fn to resume from the
standby mode.
v
If you are using the ac adapter, or using the battery, and the battery status
indicator is on (in green), press Fn+Home to make the screen brighter.
v
If you attach an external monitor to your computer, press Fn+F7 to switch
the screen output location.
v
If the problem persists, do the
“
Solution
”
in the problem below.
Problem:
The screen is unreadable or distorted.
Solution:
Make sure that:
v
The display device driver is installed correctly.
v
The display resolution and color depth are correctly set.
v
The monitor type is correct.
To check these settings, do as follows:
For Windows
®
2000 and Windows
®
98:
1.
Double-click
Display
in the Control Panel. The Display Properties window
opens.
2.
Click the
Settings
tab.
3.
Check if the color depth and resolution are correctly set.
4.
Click
Advanced
.
5.
Click the
Adapter
tab.
6.
Make sure
“
ATI Mobility RADEON
”
or
“
ATI Mobility RADEON 7500
”
is
shown in the adapter information window.
7.
Click the
Monitor
tab.
8.
Make sure the Monitor type is correct.
For Windows
®
XP:
1.
Click
Start
.
2.
Click
Control Panel
.
3.
Click
Appearance and Themes
in the Pick a category section.
4.
Click
Display
in the Pick a Control Panel icon section.
5.
Click the
Settings
tab.
6.
Check whether the color depth and resolution are correctly set.
Solving computer problems
24
ThinkPad
®
R40 Series Service and Troubleshooting Guide