Этим способом можно отключить любой источник ввода в Linux.

Смотрим список устройств ввода:

#xinput list                                                      
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ GXTP7863:00 27C6:01E0 Mouse               id=10   [slave  pointer  (2)]
⎜   ↳ GXTP7863:00 27C6:01E0 Touchpad            id=11   [slave  pointer  (2)]
⎜   ↳ ELAN2842:00 04F3:2C7B                     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)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ HD Camera: HD Camera                      id=9    [slave  keyboard (3)]
    ↳ Huawei WMI hotkeys                        id=13   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]

И выключаем или включаем нужное:

xinput disable "ELAN2842:00 04F3:2C7B"
xinput enable "ELAN2842:00 04F3:2C7B"