- There's a nice graphical tool that alows you to simply enable and disable the touchpad. You can install it by typing on a console:
sudo add-apt-repository ppa:atareao/atareao
sudo apt-get update
sudo apt-get install touchpad-indicator
Official page
You can try to enable it from the System Settings
You can try running from the console
synclient TouchpadOff=0
- sudo gedit /etc/rc.local
Before the line exit 0 you will add the following lines:
sudo modprobe -r psmouse
sudo modprobe psmouse proto=imps
Save the file and reboot the computer
Source