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Recently I upgrade to ubuntu 22.04 but when I disable my touchpad in settings, it still works. I didn't have this problem on ubuntu 21.10.

I can disable it by fn+f6 but this isn't permanent. I want to disable it completely not on each startup.

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1 Answers1

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Try to disable the Synaptics touchpad driver, then reboot.

sudo apt remove xserver-xorg-input-synaptics

I had installed the driver to get rid of some erratic behavior due to too high touchpad sensitivity like random text selection etc. However, when I tried to disable the mouse it was not disabled as in your case. Deinstallation helped in my case.