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[Bug 1540511] Re: Touchpad not working (4.3 -> 4.4 regression)


That commit was added in 4.5-rc1 and it was not cc'd to stable.  We
should request this commit in Xenial on the kernel team mailing list.
Do you want to do that David, or do you want me to?

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  Touchpad not working (4.3 -> 4.4 regression)

Status in linux package in Ubuntu:

Bug description:
  When booting the latest xenial kernel (4.4.0-2.16), my touchpad is not
  working. When booting 4.3 kernels, the touchpad is works.

  Expected: When I move a finger touching the touchpad, an arrow should move accordingly on the screen.
  What happens instead: nothing.

  I've tried an upstream 4.4 kernel; problem is present there as well.

  I've booted with pci=noaer due to another bug that would otherwise
  spam dmesg. Removing it does not fix the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-2-generic 4.4.0-2.16
  ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
  Uname: Linux 4.4.0-2-generic x86_64
  ApportVersion: 2.19.4-0ubuntu1
  Architecture: amd64
   /dev/snd/controlC0:  david      1759 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Feb  1 18:49:25 2016
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=fe528b90-b4eb-4a20-82bd-6a03b79cfb14
  InstallationDate: Installed on 2015-11-28 (65 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151127)
  MachineType: Dell Inc. Inspiron 13-7359
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-2-generic.efi.signed root=UUID=94d54f88-5d18-4e2b-960a-8717d6e618bb ro noprompt persistent pci=noaer quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-2-generic N/A
   linux-backports-modules-4.4.0-2-generic  N/A
   linux-firmware                           1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/08/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.02.00
  dmi.board.name: 0NT3WX
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd09/08/2015:svnDellInc.:pnInspiron13-7359:pvr:rvnDellInc.:rn0NT3WX:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Inspiron 13-7359
  dmi.sys.vendor: Dell Inc.

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