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[Bug 1087773] Re: Backlight Not Working

 

Clownfishy, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc6

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags added: latest-bios-a08

** Package changed: xorg (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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https://bugs.launchpad.net/bugs/1087773

Title:
  Backlight Not Working

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Screen is always dim, cannot force the backlight on.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.7.0-4.12-generic 3.7.0-rc7
  Uname: Linux 3.7.0-4-generic i686
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Fri Dec  7 16:37:22 2012
  DistUpgraded: Fresh install
  DistroCodename: quantal
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   NVIDIA Corporation G71 [Quadro FX 2500M] [10de:029a] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:019b]
  InstallationDate: Installed on 2012-09-22 (76 days ago)
  InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Alpha i386(20120912)
  MachineType: Dell Inc. Precision M90
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=unknown
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.7.0-4-generic root=UUID=e6a51b8d-824e-43e1-af98-262856fd3f72 ro vesafb.invalid=1 plymouth:debug nopat drm.debug=0xe
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/16/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A08
  dmi.board.name: 0YD632
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA08:bd10/16/2008:svnDellInc.:pnPrecisionM90:pvr:rvnDellInc.:rn0YD632:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Precision M90
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.40+git20121123.171666e4-0ubuntu0ricotz2~quantal
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.1~git20121204.ec83535c-0ubuntu0ricotz~quantal
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.1~git20121204.ec83535c-0ubuntu0ricotz~quantal
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.0.902+git20121207+server-1.13-branch.ede07c1a-0ubuntu0ricotz~quantal
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.0.99+git20121126.60cd6cea-0ubuntu0sarvatt~quantal
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.15+git20121203.6f675eea-0ubuntu0sarvatt~quantal
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.4+git20121126.3b33a0b4-0ubuntu0sarvatt~quantal

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