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[Launchpad Bug Tracker <951339@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/951339

Title:
  Brightness does not work in Ubuntu 12.04

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  After upgrading from Ubuntu 11.10 to 12.04 my back light keys stopped
  working. They were originally not working until I followed the steps
  by https://bugs.launchpad.net/ubuntu/+source/linux/+bug/872652 and now
  I do not have a working back light.

  --
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-18-generic 3.2.0-18.29
  ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
  Uname: Linux 3.2.0-18-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  philip     2040 F.... pulseaudio
   /dev/snd/pcmC0D0p:   philip     2040 F...m pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf0a00000 irq 45'
     Mixer name	: 'Intel IbexPeak HDMI'
     Components	: 'HDA:111d7675,10280413,00100103 HDA:80862804,80860101,00100000'
     Controls      : 23
     Simple ctrls  : 11
  Date: Fri Mar  9 21:31:41 2012
  HibernationDevice: RESUME=UUID=2e75240d-4c5c-4da7-a7fd-a8cb96250abd
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 003: ID 0c45:6417 Microdia Integrated Webcam
  MachineType: Dell Inc. Studio 1558
  ProcEnviron:
   TERM=xterm
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=3b7a598b-2ade-4ae1-ad04-1dd958d805eb ro acpi_backlight=dell_laptop.backlight=0 quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-18-generic N/A
   linux-backports-modules-3.2.0-18-generic  N/A
   linux-firmware                            1.71
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: Upgraded to precise on 2012-03-09 (0 days ago)
  dmi.bios.date: 03/30/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A12
  dmi.board.name: 0G939P
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A12
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A12
  dmi.modalias: dmi:bvnDellInc.:bvrA12:bd03/30/2011:svnDellInc.:pnStudio1558:pvrA12:rvnDellInc.:rn0G939P:rvrA12:cvnDellInc.:ct8:cvrA12:
  dmi.product.name: Studio 1558
  dmi.product.version: A12
  dmi.sys.vendor: Dell Inc.

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