I had trouble getting my Dell XPS M1530 track pad/touch pad to work when I updated the BIOS from A07 to A09. However, it is fairly an easy fix. Edit your ‘/boot/grub/menu.lst’ file with: sudo gedit /boot/grub/menu.lst Then add: i8042.nomux=1 at the end of the ‘kernel’ line. It may look like below: title Ubuntu 8.04, …
