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[Bug 1181927] Re: [Aspire V5-431]13.04: Brightness control visible but does nothing


Given the number of bugs that the Kernel Team receives during any
development cycle it is impossible for us to review them all. Therefore,
we occasionally resort to using automated bots to request further
testing. This is such a request.

We are approaching release and would like to confirm if this bug is
still present. Please test again with the latest development kernel and
indicate in the bug if this issue still exists or not.

You can update to the latest development kernel by simply running the
following commands in a terminal window:

    sudo apt-get update
    sudo apt-get dist-upgrade

If the bug still exists, change the bug status from Incomplete to
Confirmed. If the bug no longer exists, change the bug status from
Incomplete to Fix Released.

Thank you for your help, we really do appreciate it.

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

** Tags added: kernel-request-3.11.0-7.14

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  [Aspire V5-431]13.04: Brightness control visible but does nothing

Status in “linux” package in Ubuntu:

Bug description:
  Brightness control visible but does nothing on 13.04...

  The brightness up down buttons shows the overlay brightness icon going
  up and down but it does not change the brightness (backlight).

  I have tried adjusting the kernel options acpi_osi=<x> and
  acpi_backlight=<y> (that did work with 12.10) to make it work but to
  no avail.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-generic
  ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8
  Uname: Linux 3.8.0-21-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
   /dev/snd/controlC0:  thomasc    2007 F.... pulseaudio
  Date: Mon May 20 12:45:35 2013
  HibernationDevice: RESUME=UUID=2acc4a8c-a645-4f3c-bc8e-5c7a9d9df417
  InstallationDate: Installed on 2013-04-11 (38 days ago)
  InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Alpha amd64 (20130410)
  MachineType: Acer Aspire V5-431
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic root=UUID=4cfdb2ed-677a-4fd0-aa7d-5b118700bd35 ro quiet splash vt.handoff=7
   linux-restricted-modules-3.8.0-21-generic N/A
   linux-backports-modules-3.8.0-21-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/12/2012
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: V1.20
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Aspire V5-431
  dmi.board.vendor: Acer
  dmi.board.version: V1.20
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.20
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.20:bd12/12/2012:svnAcer:pnAspireV5-431:pvrV1.20:rvnAcer:rnAspireV5-431:rvrV1.20:cvnAcer:ct9:cvrV1.20:
  dmi.product.name: Aspire V5-431
  dmi.product.version: V1.20
  dmi.sys.vendor: Acer

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