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[X <ubuntu@xxxxxxxxxxxxx>]

This defect might be due to Microsoft changing the USB identifier on the
keyboard. See these links:

https://bugzilla.kernel.org/show_bug.cgi?id=100341
https://www.reddit.com/r/SurfaceLinux/comments/3diwsy/surface_pro_3_type_cover_touch_pad_works_but_not/

Partial patch
https://gist.github.com/cransom/945ed65bda1db7b8b57a

** Bug watch added: Linux Kernel Bug Tracker #100341
   http://bugzilla.kernel.org/show_bug.cgi?id=100341

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https://bugs.launchpad.net/bugs/1550704

Title:
  Type Cover (3) touchpad not working on Surface Pro 3

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  The Type Cover (3) touchpad is not working on the Surface Pro 3.

  The keyboard works out of the box.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-generic 4.4.0.7.8
  ProcVersionSignature: Ubuntu 4.4.0-7.22-generic 4.4.2
  Uname: Linux 4.4.0-7-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  xubuntu    3087 F.... pulseaudio
   /dev/snd/controlC1:  xubuntu    3087 F.... pulseaudio
  CasperVersion: 1.367
  Date: Sat Feb 27 13:33:53 2016
  LiveMediaBuild: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
  MachineType: Microsoft Corporation Surface Pro 3
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/hostname.seed boot=casper quiet splash --- cdrom-detect/try-usb=true noprompt persistent
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-7-generic N/A
   linux-backports-modules-4.4.0-7-generic  N/A
   linux-firmware                           1.156
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/05/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3.11.0950
  dmi.board.asset.tag: 0
  dmi.board.name: Surface Pro 3
  dmi.board.vendor: Microsoft Corporation
  dmi.board.version: 1
  dmi.chassis.asset.tag: 0
  dmi.chassis.type: 9
  dmi.chassis.vendor: Microsoft Corporation
  dmi.chassis.version: 1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.11.0950:bd06/05/2015:svnMicrosoftCorporation:pnSurfacePro3:pvr1:rvnMicrosoftCorporation:rnSurfacePro3:rvr1:cvnMicrosoftCorporation:ct9:cvr1:
  dmi.product.name: Surface Pro 3
  dmi.product.version: 1
  dmi.sys.vendor: Microsoft Corporation

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