Touchpad not working anymore after update in 'Acer TravelMate P238-M-511P'

Bug #1833516 reported by Fabio Pupilli on 2019-06-20

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This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-signed-hwe (Ubuntu)

Bug Description

~$ lsb_release -rd
Description: Ubuntu 16.04.6 LTS
Release: 16.04

~$ apt-cache policy xserver-xorg-input-synaptics
  Installato: 1.8.2-1ubuntu3
  Candidato: 1.8.2-1ubuntu3
  Tabella versione:
 *** 1.8.2-1ubuntu3 500
        500 xenial/main amd64 Packages
        100 /var/lib/dpkg/status

The touchpad is not working anymore after recent update

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-52-generic 4.15.0-52.56~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-52.56~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-52-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jun 20 11:08:00 2019
InstallationDate: Installed on 2017-03-11 (830 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)

Fabio Pupilli (fabiopupilli) wrote :
Po-Hsu Lin (cypressyew) wrote :

can you attach the output of the following command:
    udevadm info -e

also, can you tell us which kernel version works with this, and which one breaks it?

You can do this by switching kernels in the grub menu [1]


Changed in linux-signed-hwe (Ubuntu):
status: New → Incomplete
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