Lenovo 20CD0033US manual Problems with the keyboard and other pointing devices, Keyboard problems

2.Open Control Panel and click Hardware and Sound ➙ Sound ➙ Playback.

3.If you are using a Headset profile, select Bluetooth Hands-free Audio and click the Set Default button. If you are using an AV profile, select Stereo Audio and click the Set Default button.

4.Click OK to close the Sound window.

Problems with the keyboard and other pointing devices

The following are the most common problems with keyboards and other pointing devices.

TrackPoint pointing device problems

•Problem: The pointer drifts when the computer is turned on or after it resumes normal operation.

Solution: The pointer might drift when you are not using the TrackPoint pointing device during normal operation. This is a normal characteristic of the TrackPoint pointing device and is not a defect. Pointer drifting might occur for several seconds under the following conditions:

–When the computer is turned on

–When the computer resumes normal operation

–When the TrackPoint pointing device is kept pressed for a long time

–When the temperature changes

•Problem: The TrackPoint pointing device or ThinkPad trackpad does not work.

Solution: Ensure that the TrackPoint pointing device or ThinkPad trackpad is enabled in the ThinkPad pointing device setting window.

Keyboard problems

•Problem: All or some keys on the keyboard do not work.

Solution: If an external numeric keypad is connected:

1.Turn off the computer.

2.Remove the external numeric keypad.

3.Turn on the computer and try using the keyboard again.

If the keyboard problem is resolved, carefully reconnect the external numeric keypad and the external keyboard. Ensure that you have seated the connectors correctly.

If the problem persists, ensure that the correct device driver is installed by doing the following:

1.Open Control Panel. Change the view of Control Panel from Category to Large icons or Small icons.

2.Click Keyboard.

3.Select the Hardware tab. In the Device Properties pane, ensure that you see this message: Device

Status: This device is working properly.

If keys on the keyboard still do not work, have the computer serviced.

•Problem: All or some keys on the external numeric keypad do not work.

Solution: Ensure that the external numeric keypad is correctly connected to the computer.

Problems with the display and multimedia devices

This topic includes the most common problems with displays and multimedia devices, including the computer display, the external monitor, and audio devices.

Chapter 9. Troubleshooting computer problems 87