Deshabilitando touchpad
Mi vieja técnica para deshabilitar el touchpad no anda en lubuntu 20.04. Así que tuve que googlear de nuevo cómo se hace.
Para ver todos los devices de entrada de X-Windows hay que correr
$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Telink 2.4G Mouse id=11 [slave pointer (2)]
⎜ ↳ Telink 2.4G Mouse Consumer Control id=12 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=16 [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)]
↳ Logitech Logitech G430 Gaming Headset id=9 [slave keyboard (3)]
↳ Telink 2.4G Mouse System Control id=10 [slave keyboard (3)]
↳ CHICONY HP Basic USB Keyboard id=13 [slave keyboard (3)]
↳ HP TrueVision HD Camera: HP Tru id=14 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=15 [slave keyboard (3)]
↳ HP Wireless hotkeys id=17 [slave keyboard (3)]
↳ HP WMI hotkeys id=18 [slave keyboard (3)]
↳ Telink 2.4G Mouse Consumer Control id=19 [slave keyboard (3)]
En mi compu el touchpad tiene el id 16, así que para apagarlo hay que correr xinput --disable "SynPS/2 Synaptics TouchPad" y para prenderlo xinput --enable "SynPS/2 Synaptics TouchPad"
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