Comment 26 for bug 775790

Hi, I have the same erratic behaviour Dell Lat E6510 Ubuntu 11.10. The trackpad is cool. The external mouse is cool. Pressing on the palmrest (a test asked for by Dell service center) has no effect. Dell replaced the palmrest assembly containing the trackpad last week. The problem disappeared for a few days and yesterday it came back.

As I run Linux, dell asked me to go to the BIOS config screen (boot+F2) and try the external mouse, trackpad and touch pad. Mounse was cool, trackpad was cool, touchpad same erratic behaviour. I hope this absolves Linux. UNLESS the Linux driver is collecting some adaptive calibration information in real time and programming derived numbers back into some touchpad hardware calibration register. I have no idea if this is ever done, Its just a thought.

Good luck guys. Hope this helps
Justin