I'm on a Toshiba Satellite laptop with Ubuntu 16.04
My touch-pad suddenly stopped working, I don't know what caused it. I did not tinker with anything related to the touch-pad.
After reading this and this
I've tried modifying the GRUB_CMDLINE_LINUX_DEFAULT line in the file /etc/defaut/grub then running "sudo update-grub" and then reeboting but no parameters I enter seem to help.
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I also tried adding some lines on this file /usr/share/X11/xorg.conf.d/50-synaptics.conf as seen on the third answer here with no results.
This is the xinput I get.
⎡ Virtual core pointer id=2 [master pointer (3)]
↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
↳ SynPS/2 Synaptics TouchPad id=12 [slave pointer (2)]
When I run xinput -test 12 it doesn't track activity (neither trying to move the pointer nor clicking), yet it tracks the activity of other devices just fine.
I really don't like to waste people's time but I don't seem to find any answers online, and since this happened in such a unexpected way I don't know what else to do but ask for help.