disable / enable Touchpad use command line

xinput list

Get list of input device

laser@laser-ThinkPad-T460s:~$ xinput list
⎡ Virtual core pointer                        id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                  id=4    [slave  pointer  (2)]
⎜   ↳ TPPS/2 IBM TrackPoint                       id=13    [slave  pointer  (2)]
⎜   ↳ Logitech M570                               id=9    [slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad                  id=12    [slave  pointer  (2)]
⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard                 id=5    [slave  keyboard (3)]
    ↳ Power Button                                id=6    [slave  keyboard (3)]
    ↳ Video Bus                                   id=7    [slave  keyboard (3)]
    ↳ Sleep Button                                id=8    [slave  keyboard (3)]
    ↳ Integrated Camera: Integrated C             id=10    [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard                id=11    [slave  keyboard (3)]
    ↳ ThinkPad Extra Buttons    

My Touchpad id = 12 


Use next command to disable/enable the touchpad

xinput disable 12
xinput enable 12