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After a recent update to Ubuntu Gnome 16.04 LTS my trackpad's movements have been inconsistent. I turned the acceleration to zero through the xset command, but the problem still occurs.

I duel booted windows and tested the trackpad on their with no issue, so I assume this isn't hardware related.

System:

  • Synaptics Touchpad
  • Ubuntu 18.04
  • What does uname -r display when you type it in the terminal? – WinEunuuchs2Unix Jan 22 '18 at 04:58
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    @WinEunuuchs2Unix 4.13.0-30-generic –  Jan 22 '18 at 05:34
  • Sounds related to this 4.13.0-26-generic update problem. Last user with touchpad problem reported success upgrading kernel to 4.14.14-041414-generic just yesterday. – WinEunuuchs2Unix Jan 22 '18 at 11:12
  • @WinEunuuchs2Unix I'm now running 4.14.14-041414-generic but the issue still persists. Any other recommendations? –  Jan 22 '18 at 21:46
  • Check the second answer on the link above. It deals with Ubuntu 17.10 update. Also remove the kernel 4.14.14 so you get back onto regular kernel updates on the 4.13 kernel chain which is supported. Removing kernels is described in the link above.. – WinEunuuchs2Unix Jan 23 '18 at 00:22
  • @WinEunuuchs2Unix that worked, thank you! –  Jan 23 '18 at 06:02
  • 18.04 is not yet released. Please confirm the version of Ubuntu you are on. – Thomas Ward Feb 05 '18 at 16:34
  • @ThomasWard sorry should I have clarified. I asked this question when using 17.10 but the answer still works for me even though I upgraded to 18.04 (I'm currently on 18.04 on my Razer Blade). I'm new to this, should I have left it a 17.10? I thought it would have been better if I updated the question as this solution works on 18.04. –  Feb 10 '18 at 00:43
  • @ceiphr we just don't support 18.04 here because it's not yet released and still technically in development. The Help Center even says this. But the point is that 18.04 is still under development so things might change/explode. – Thomas Ward Feb 10 '18 at 16:48

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I'd the same problem, it could be a driver touchpad issue.

--> Check also Here

In my case, I had a conflict between the old synaptic driver and the new libinput package. This topic helps me : Debian GNOME: touchpad settings missing. Use libinput instead of synaptics

After fresh install of libinput, I ran : 

sudo apt-get purge xserver-xorg-input-synaptics

And my touchpad works again

demiton
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