Thursday, March 15, 2018

Xubuntu 18.04 -> 18.04.1 Upgrade Synaptics Touchpad Not Working

This is my first post here and I have spent many hours trying to read through the posts to diagnose this problem. I used Linux off and on since the late 90s and only recently came back to it.


I was running Xubuntu 18.04 on a Lenovo ThinkPad 11e with no issues until I did a ‘sudo apt dist-upgrade‘, which brought me to 18.04.1 (according to lsb_release -a) and my Synaptics s3203_ver5 touchpad stopped working.


Prior to the upgrade my touchpad was working fine, so I know it is compatible with Xubuntu. I tried doing a clean install with 18.04 and the touchpad works until upgrade and dist-upgrade. The last packages I noticed to be updated were kmod and libkmod2.


When I do the following, the touchpad works for 10-20 seconds and then it stops:
sudo rmmod psmouse
sudo modprobe psmouse


Both the following packages are installed:
xserver-xorg-input-libinput 0.27.1-1
xserver-xorg-input-synaptics 1.9.0-1ubuntu1


I tried booting to other kernels 4.15.0-20 and 4.15.0-29 from 4.15.0-38, but that has no effect.


I am a huge fan of Linux and want to stick with it, but I don’t have the time to spend troubleshooting touchpad problems after a system software update. Any assistance would be appreciated.


Thanks and best regards!

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