Linux Lite Forums

Software - Support => Other => Topic started by: Golan2072 on December 04, 2019, 08:10:41 AM

Title: Touchpad not working following latest updates
Post by: Golan2072 on December 04, 2019, 08:10:41 AM
Hi,


I have a Dell Vostro 15 3000 series laptop. It worked perfectly until today. I have the latest Linux Lite version and have installed updates today.


Immediately after the updates, my touchpad stopped working. I tried various solution I found on Google, none works.
Title: Re: Touchpad not working following latest updates
Post by: Moltke on December 04, 2019, 11:28:45 AM
Hi,


I have a Dell Vostro 15 3000 series laptop. It worked perfectly until today. I have the latest Linux Lite version and have installed updates today.


Immediately after the updates, my touchpad stopped working. I tried various solution I found on Google, none works.

What do you mean excatly by "stopped working"?  Doesn't tab work? Neither right nor left button works? it doesn't work at all? I ask because depending on the specific issue you may have there might be a specific solution. For me, it looks like the driver module isn't being loadaed. Did you try rebooting your pc after updating/upgrading? If you didn't, try that and see if it works. Also, what's the output of this command?

Code: [Select]
grep -e "input driver" /var/log/Xorg.0.log
Title: Re: Touchpad not working following latest updates
Post by: Golan2072 on December 04, 2019, 12:17:22 PM
The touchpad does not work at all - neither cursor movement nor buttons.


I tried rebooting several times. Also tried turning the laptop off completely, waiting several seconds, then turning it on again. It didn't help.


Here is the output:


(https://i38.photobucket.com/albums/e121/golan2072/4-12-19_zpshpfdcxd9.png) (http://s38.photobucket.com/user/golan2072/media/4-12-19_zpshpfdcxd9.png.html)
Title: Re: Touchpad not working following latest updates
Post by: Jerry on December 04, 2019, 04:48:46 PM
Let's see if it is kernel update related. When you reboot, hold down Shift and then go to Advanced and choose a previous kernel to boot from. Try that each time to see if functionality returns.
Title: Re: Touchpad not working following latest updates
Post by: Golan2072 on December 04, 2019, 10:52:56 PM
Bingo! Going back to the previous kernel solves the issue.
Title: Re: Touchpad not working following latest updates
Post by: Golan2072 on December 05, 2019, 05:03:19 AM
Is this bug report relevant?

https://bugzilla.kernel.org/show_bug.cgi?id=47311 (https://bugzilla.kernel.org/show_bug.cgi?id=47311)
Title: Re: Touchpad not working following latest updates
Post by: Jerry on December 05, 2019, 09:28:49 AM
Is this bug report relevant?

https://bugzilla.kernel.org/show_bug.cgi?id=47311 (https://bugzilla.kernel.org/show_bug.cgi?id=47311)

Might pay to Google the kernel version and Ubuntu to get a clearer idea eg. "kernel 4.4.0-131-generic #157-Ubuntu SMP touchpad bug" If no finds, then submit the bug to Ubuntu.