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[Bug 1183942] Re: Cannot adjust screen brightness in DELL XPS 13

 

Francisco Cribari, 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.

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

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

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

** Tags added: bios-outdated-a10 needs-upstream-testing

** Summary changed:

- Cannot adjust screen brightness in DELL XPS 13 
+ [Dell XPS 13 (L322X)] Cannot adjust screen brightness

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https://bugs.launchpad.net/bugs/1183942

Title:
  [Dell XPS 13 (L322X)] Cannot adjust screen brightness

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  With kernel 3.8.0-21 I am able to adjust the screen bringhtness using
  the Fn keys. There is a regression in kernel 3.8.0-22. When using the
  latter I am unable to control screen brightness. Hardware is DELL XPS
  13 and I running Ubuntu Linux 13.04 64 bit.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: xorg 1:7.7+1ubuntu4
  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
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Fri May 24 14:23:59 2013
  DistUpgraded: Fresh install
  DistroCodename: raring
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:058b]
  InstallationDate: Installed on 2013-05-16 (8 days ago)
  InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Dell Inc. Dell System XPS L322X
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-21-generic root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/22/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0PJHXN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd01/22/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs 20090808ubuntu36
  version.libdrm2: libdrm2 2.4.43-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1

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