Lenovo 7417P9U - Tp T400 C2d/2.4 14.1 2Gb 160Gb Dvdr Wls 6C Wvb Service Manual page 36

Problem:
Solution:
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ThinkPad T400 and R400 Service and Troubleshooting Guide
The screen is unreadable or distorted.
Make sure that:
v The screen resolution and color quality are correctly set.
v The display device driver is installed correctly.
v The monitor type is correct.
To check these settings, do as follows:
For Windows Vista:
1. Right-click on the desktop, click Personalize, then click Display Settings.
2. Check whether the screen resolution and color quality are correctly set.
3. Click Advanced Settings.
4. Click the Adapter tab.
5. Make sure that the correct device driver name is shown in the adapter
information window.
Note: The device driver name depends on the video chip that has been
installed on your computer.
6. Click the Properties button. If you are prompted for an administrator
password or confirmation, type the password or provide confirmation.
Check the "Device status" box and make sure that the device is working
properly. If not, click the Troubleshoot button.
7. Click the Monitor tab.
8. Make sure that the information is correct.
9. Click the Properties button. If you are prompted for an administrator
password or confirmation, type the password or provide confirmation.
Check the "Device status" box and make sure the device is working
properly. If not, click the Troubleshoot button.