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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1763754

and then change the status of the bug to 'Confirmed'.

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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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  'SynPS/2 Synaptics TouchPad' doesn't work 'Lenovo Thinkpad T440p'
  after the kernel upgrade

Status in linux package in Ubuntu:

Bug description:
  Hi all,

  I have been using Xubuntu 16.04 since June 2016 on my Lenovo Thinkpad T440p 
(i5-4210M, 16GB RAM, NVIDIA 730M). However since last year (probably after a 
kernel upgrade), my touchpad has stopped working (I always keep the system 
upgraded via apt update/upgrade. It doesn't work at all, and I have to use an 
external mouse. As per the description at, 
  Only very rarely, it somehow works as well (by rare I mean twice in the last 
two years), but as soon as I reboot, the state is back to non-working at all. 

  I attach an archive touchpad_debug.tar.gz containing two sub-folders
  working_state and nonworking_state. Each folder contains the dmesg
  output, my /proc/bus/input/devices, and my /var/log/Xorg.0.log when
  the touchpad was working and not working. In working_state, I
  additionally have the outputs to "xmodmap -pp", "xinput --list ", and
  "xinput --list-props <id>".


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