Based on a slight change in the original text.
Run the following command in a terminal:
XInput List
You'll get an output of that looks like this:
[email protected]:~$ xinput list? Virtual Core pointer id=2[master pointer (3)]? ? Virtual core XTEST pointer id=4[slave pointer (2)]? ? Logitech USB Receiver Id=11[slave pointer (2)]? ? SYNPS/2 Synaptics TouchPad id=14[slave pointer (2)]? ? TPPS/2 IBM TrackPoint Id=15[slave pointer (2)]? Virtual Core keyboard Id=3[master keyboard (2)] &nbs p;? Virtual Core XTEST keyboard Id=5[slave keyboard (3)] ? Power Button id=6[slave keyboard (3)] ? Video Bus ID=7[SL Ave keyboard (3)] ? Video Bus ID=8[SL Ave keyboard (3)] ? Sleep Button id=9[slave & Nbsp;keyboard (3)] ? Logitech USB Receiver Id=10[slave keyboard (3)] ? Integrated Camera Id=12[slave keyboard (3)] ? At translated Set 2 keyboard id=13[slave keyboard (3)] ? ThinkPad Extra Buttons id=16[slave keyboard (3)][email protected]:~$
IT displays all the input devices connected. Note that they all has an ID. Since are the ID for my touchpad, running the following command would disable it.
XInput set-prop "Device Enabled" 0
Two
[Email protected]:~$ synclient|grep Touch Touchpadoff
Turn off touch pad synclient touchpadoff=1 Turn it back on synclient touchpadoff=0 this-to even better.
Three
sudo apt-get install touchpad-indicator The good new is that touchpad-indicator are worked again in 11.10.
Ubuntu Disable Touchpad