Comment 14 for bug 1041916

To the people affected by this bug, I'd recommend trying the driver made by Dave Turvene mentionned here :

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/606238/comments/220

driver is at http://www.dahetral.com/public-download

unpack the driver to /usr/src/psmouse-alps-dst-1.0/
then :
sudo dkms build psmouse/alps-dst-1.0
sudo dkms install psmouse/alps-dst-1.0
sudo rmmod psmouse && sudo modprobe -v psmouse