Ubuntu – Dell vostro laptop, ubuntu 18.04.3 LTS, touchpad not working

18.04dellsynapticstouchpad

I have DELL machine with UBUNTU 18.04.3 LTS operating system. I did a routine software update, when prompted by Ubuntu to update itself. And post it, I did a restart. After the restart my touchpad stopped responding.

PLEASE NOTE: i have a dual boot machine, with windows and ubuntu. And on windows touchpad seems to work fine.

I followed this link
Touchpad not working on Ubuntu 18.04
. And I tried everything mentioned in that link but nothing seems to help me. My touchpad still remains unresponsive.

Following are output of xinput

enter image description here

As, you can see in the above image it is able to detect Synaptics
TM3108-002 (synaptic touchpad) but yet the touchpad is still unresponsive

Also when I do a apt list –installed , I do see xserver-xorg-input-synaptics and xserver-xorg-input-all

Can someone please help me out with making my touchpad responsive again. It is so painful to work on a laptop with unresponsive touchpad.

Best Answer

So, I found the solution here in the links posted above by @guiverc. So system update to kernel 4.15.0-72-generic made the synaptic touchpad unresponsive. So for the time being you can do one of the two things , you can either reboot your system with kernel 4.5.0-70-generic or follow the solution at this link https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1854798/comments/11

sudo add-apt-repository ppa:mapengyu/bionic-oem

sudo apt-get update

sudo apt install linux-image-unsigned-4.15.0-73-generic linux-modules-4.15.0-73-generic linux-modules-extra-4.15.0-73-generic

and do a system restart after the above

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