Symptom

Pointing stick

Call Center:

Repair Center:

Repair Center:

Suggestions

Likely Causes

Comments

General problems

Special TrackPoint driver features not working

Click button doesn’t work

For an OmniBook 4100: Drifting or erratic pointer using pointing stick

Touch pad

General problems

Special TouchPad driver features not working

Click button doesn’t work

Check settings in Control Panel.

Check that the pointing stick is enabled in BIOS Setup.

If installed, remove TouchPad driver support using Add/Remove Program.

In Mouse Properties, select the IBM TrackPoint driver from the track-point directory under \OmniBook\Drivers.

For an OmniBook 4100, check whether serial number is between TW82000000 and TW83599999.

Check settings in Control Panel.

Check pointing stick settings in Control Panel. The IBM TrackPoint driver can redefine touch pad operation.

Check that the touch pad is enabled in BIOS Setup.

If installed, remove IBM TrackPoint support using Add/Remove Program, then in Mouse Properties, select the standard PS/2 mouse.

Disable the pointing stick in BIOS Setup, enable the touch pad.

Run Setup.exe from the touch-pad subdirectory under \Omnibook\Drivers.

Keyboard assembly. Motherboard.

Keyboard assembly. Motherboard.

Top case.

Motherboard.

Keyboard assembly.

Top case.

Motherboard.

Top case.

Motherboard.

Top case.

Motherboard.

Try reinserting the flex cable in the connector on the VGA PCA.

For an OmniBook 4100 with serial number between TW82000000 and TW83599999, check the date code on the bottom of the keyboard. If the date code is “828”, replace the keyboard. (Service note 4100-02.)

HP OmniBook 4100/4150

Troubleshooting and Diagnostics

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