Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: xorg (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1576784

Title:
  MatchIsTouchscreen also matches touchpads in 16.04

Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  Previously in 15.10 I had the following rule in 
/usr/share/X11/xorg.conf.d/99-no-touchscreen.conf:
  Section "InputClass"
      Identifier         "Touchscreen disable"
      MatchIsTouchscreen "on"

      Option "Ignore" "on"
  EndSection

  This worked in disabling the touchpad on my lenovo T440s

  After the upgrade to 16.04 I noticed that my touchpad would not work. And I 
found the following lines in the log:
  [  3107.956] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad 
(/dev/input/event6)
  [  3107.956] (**) SynPS/2 Synaptics TouchPad: Ignoring device from InputClass 
"Touchscreen disable"
  [  3107.956] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad 
(/dev/input/mouse0)
  [  3107.956] (**) SynPS/2 Synaptics TouchPad: Ignoring device from InputClass 
"Touchscreen disable"

  So I had to disable the rule in order to be able to use the touchpad,
  and now  I can't disable the touchscreen.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xserver-xorg 1:7.7+13ubuntu3
  ProcVersionSignature: Ubuntu 4.4.0-22.38-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Fri Apr 29 09:39:23 2016
  InstallationDate: Installed on 2015-03-18 (407 days ago)
  InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: xorg
  UpgradeStatus: Upgraded to xenial on 2016-04-28 (1 days ago)

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