Unable to disable xinput

I'm trying to disable my touch screen with xinput.

The output of running is xinput --list

Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ELAN0B00:00 04F3:306A Touchpad id=12 [slave pointer (2)]
⎜ ↳ WCOM0033:00 2D1F:001E Pen (0) id=16 [slave pointer (2)]
⎜ ↳ G2Touch Multi-Touch by G2TSP id=11 [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)] ↳ 720p HD Camera id=9 [slave keyboard (3)] ↳ 720p HD Camera id=10 [slave keyboard (3)] ↳ WCOM0033:00 2D1F:001E id=13 [slave keyboard (3)] ↳ Intel Virtual Button driver id=14 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=15 [slave keyboard (3)]

My device seems to be id=11, so I run:

xinput disable 11

After running this it gets disabled until I use the touch screen then 5 seconds later gets re-enabled automatically?? How can I permanently disable touch screen.

1 Answer

I've run through a couple of ways to disable my touchscreen - the one that seems cleanest for me, in Ubuntu 17.10 is to edit the file "/usr/share/X11/xorg.conf.d/40-libinput.conf" and modify the section referring to touchscreens:

sudo nano /usr/share/X11/xorg.conf.d/40-libinput.conf

Scroll to the section about touchscreens, and add the line 'Option "Ignore" "on"' - the section contents will look like

Section "InputClass" Identifier "libinput touchscreen catchall" MatchIsTouchscreen "on" MatchDevicePath "/dev/input/event*" Driver "libinput" Option "Ignore" "on" #Disable loading the touchscreen
EndSection

see man xorg.conf, this option indicates to xorg that "the device should be ignored entirely, and not added to the server."