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It is my understanding that I can disable my touchscreen by adding Option "Ignore" "on" to this file 

          /usr/share/X11/xorg.conf.d/10-evdev.conf

 Section "InputClass"
          Identifier "evdev touchscreen catchall"
          MatchIsTouchscreen "on"
          MatchDevicePath "/dev/input/event*"
          Driver "evdev"
          EndSection

so it would look like this

 Section "InputClass"
          Identifier "evdev touchscreen catchall"
          MatchIsTouchscreen "on"
          MatchDevicePath "/dev/input/event*"
          Driver "evdev"
          Option "Ignore" "on"
          EndSection

What would happen if I simplied changed MatchIsTouchscreen to "off"?

 Section "InputClass"
          Identifier "evdev touchscreen catchall"
          MatchIsTouchscreen "off"
          MatchDevicePath "/dev/input/event*"
          Driver "evdev"
          EndSection

Would this disable my touchscreen?

Shawn Moore
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  • I disable my touchscreen by `xinput --disable 'ELAN Touchscreen'`, having identified my touchscreen in `xinput -list` – Charles Green Jun 10 '17 at 03:48
  • i currently use xinput on start up, this is not the answer i am looking for. My question is. What would happen if I simply changed MatchIsTouchscreen to "off"? – Shawn Moore Jun 10 '17 at 10:31

1 Answers1

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Edited file the file with 

sudo nano /usr/share/X11/xorg.conf.d/10-evdev.conf

Changed MatchIsTouchscreen from "on" to "off"

Section "InputClass"
        Identifier "evdev touchscreen catchall"
        MatchIsTouchscreen "off"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
        EndSection

"ELAN touchscreen" is disabled and no longer detected in xinput list.

wjandrea
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Shawn Moore
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  • ---- CAVEAT ---- Doing this on my ASUS made my mouse and keyboard stop working. I then had to edit the `10-evdev.conf` file using the VERY LIMITED onscreen keyboard (no arrow keys or ctrl key). Before trying this solution, first attempt to add the `Option "Ignore" "on"` line (worked for me). If you add the "off" line and it breaks your keyboard run the following via onscreen keyboard to fix your laptop: `sudo su && cd /usr/share/X11/xorg.conf.d/ && mv 10-evdev.conf evdevold && sed 's/"off"/"on"/g' evdevold > 10-evdev.conf && reboot`. Open this on your phone so you have it handy if needed. – Steven Moseley Jul 29 '19 at 20:32