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[Launchpad Bug Tracker <1449252@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1449252

Title:
  Touchpad on Acer Aspire ES1-311-C37D does not work with kernel >
  3.14.39-031439.

Status in linux package in Ubuntu:
  Expired

Bug description:
  I upgraded my (l)ubuntu to 15.04, which resulted in a non-detected
  touchpad, i.e., xinput does not list it.  I then tried various
  mainline kernels, with the following results.

  With the following kernels, the touchpad works:

  Linux Martin-Laptop 3.13.0-49-generic #83-Ubuntu SMP Fri Apr 10 20:11:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
  Linux Martin-Laptop 3.14.39-031439-generic #201504211206 SMP Tue Apr 21 11:09:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  With the following kernels, it doesn't:

  Linux Martin-Laptop 3.15.0-031500-generic #201406131105 SMP Fri Jun 13 15:06:46 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  Linux Martin-Laptop 3.15.10-031510-generic #201408132333 SMP Thu Aug 14 03:35:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  Linux Martin-Laptop 3.16.0-34-generic #47-Ubuntu SMP Fri Apr 10 18:02:58 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
  Linux Martin-Laptop 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  4.0.0-040000-generic did not work either.

  On the other hand, 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16
  23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux appears to be the
  first kernel with which screen brightness control works...

  WORKAROUND: In the BIOS, change Touchpad option from Advanced to
  Basic.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-15-generic 3.19.0-15.15
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  martin     1909 F.... pulseaudio
  CurrentDesktop: LXDE
  Date: Mon Apr 27 22:21:38 2015
  HibernationDevice: RESUME=UUID=1b425cd9-2680-4489-9729-1e9bbc024f85
  InstallationDate: Installed on 2015-02-11 (75 days ago)
  InstallationMedia:

  MachineType: Acer Aspire ES1-311
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic root=UUID=980e7810-c6a4-4211-b478-cc8152085b9a ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-15-generic N/A
   linux-backports-modules-3.19.0-15-generic  N/A
   linux-firmware                             1.143
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-04-27 (0 days ago)
  dmi.bios.date: 10/24/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.10
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: Aspire ES1-311
  dmi.board.vendor: Acer
  dmi.board.version: V1.10
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.10
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.10:bd10/24/2014:svnAcer:pnAspireES1-311:pvrV1.10:rvnAcer:rnAspireES1-311:rvrV1.10:cvnAcer:ct10:cvrV1.10:
  dmi.product.name: Aspire ES1-311
  dmi.product.version: V1.10
  dmi.sys.vendor: Acer

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