The solution may have been posted before, but here are the instructions in full clarity.
For ease save the following in a .sh script file, using any text editor, make it executable by going to 'Properties' and run the file:
Code: Select all
sudo wget http://www.dahetral.com/public-download/psmouse-alps-dst-1.2.tbz
sudo tar jxvf ./psmouse-alps-dst-1.2.tbz -C /
sudo dkms add .
sudo dkms build -m psmouse -v alps-dst-1.2
sudo dkms install -m psmouse -v alps-dst-1.2
sudo modprobe psmouse
echo -n "Installation complete"
OR you could run the commands one by one.
I found the solution here http://askubuntu.com/questions/154770/alps-touchpad-on-dell-how-do-i-install-the-dkms-driver-to-enable-multitouch
which leads to the sites.