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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 1763755

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

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the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
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** 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.

  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. Additionally, even when working in those two rare
  occasions, the touchpad behaved erratically, i.e., the tap click was
  not working and the pointer was kind of jumpy.

  As per the description at, 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


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