Disable touchpad under Ubuntu

This little tutorial shows, how to disable touchpad under Ubuntu (v. 16.04) permanently. The reason is, that I generally use only the red trackpoint of my Lenovo T530 as a pointing device. I don’t need a touchpad anyway. But when working with the trackpoint, I accidentally touch the touchpad with my thumbs many times. That moves the cursor somewhere, what irritates me a lot. That’s why I had to switch it of (disable touchpad).

First I had to find the device number of the touchpad. Therefore I had to use the xinput command, to list all input devices:

As you can see, the touchpad had the ID 14.

Now I was able to run the following command to disable touchpad:

But these changes would be lost after the next reboot . That’s why I had to disable touchpad permanently by setting up a user crontab for the reboot event, that is triggert on system startup.

  1. Edit users crontab:
  2. Add this line:
  3. That’s it! The device will stay disabled permanently.

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