Lenovo ThinkPad T560 User Manual page 119

If a power-on password is set, press any key to display the prompt for the power-on password and
then type the correct password and press Enter.
If these items are correctly set, and the screen remains blank, have the computer serviced.
• Problem: When I turn on the computer, only a white cursor is displayed on a blank screen.
Solution: If you have modified a partition on your storage drive by using partition software, information
about that partition, or the master boot record might have been destroyed.
Do the following to try to solve the problem:
1. Turn off the computer, and then turn it on again.
2. If you still see only the cursor on the screen, do the following:
– If you have used partition software, examine the partition on the storage drive by using the
software, and recover the partition if required.
– Use the recovery solutions to restore the system to the factory default state.
If the problem persists, have the computer serviced.
• Problem: The screen is unreadable or distorted.
Solution: Make sure that:
– The display device driver is installed correctly.
– The screen resolution and color quality are correctly set.
– The monitor type is correct.
To check these settings, do the following:
1. Right-click on the desktop and do the following:
– For Windows 7: Click Screen resolution.
– For Windows 10: Click Display settings. Show the displayed window in full screen. Then click
Advanced display settings.
Note: If your computer cannot detect the external monitor, click the Detect button.
2. Select the external monitor and set Resolution.
3. Do the following:
– For Windows 7: Click Advanced settings.
– For Windows 10: Click Display adapter properties.
4. Click the Monitor tab. Check the monitor information to make sure that the monitor type is correct. If
it is, click OK to close the window; otherwise proceed with the following steps.
5. If more than two monitor types are displayed, select Generic PnP Monitor or Generic Non-PnP
Monitor.
6. Click Properties. If you are prompted for an administrator password or confirmation, type the
password or provide confirmation.
7. Click the Driver tab.
8. Click Update Driver.
9. Click Browse my computer for driver software, and then click Let me pick from a list of device
drivers on my computer.
10. Clear the Show compatible hardware check box.
.
Chapter 8 Troubleshooting computer problems
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