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[Stephen Michalski <zerodroprate@xxxxxxxxx>]

Bug is also persistent in the LiveCD version of Ubuntu 13.10.

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https://bugs.launchpad.net/bugs/1274398

Title:
  Backlight brightness adjustment and Fn keys do not work on Asus G75VW
  series laptop on Ubuntu 12.04 LTS

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The backlight brightness adjustment through the Brightness and Lock
  settings and also through the use of the function keys on the Asus
  G75VW model laptop do not function. Changing the brightness with the
  slider in the Brightness and Lock settings yields no change in
  brightness, and using fn+F5 and fn+F6, which are the buttons used as
  hotkeys for brightness adjustment, also produce no change in
  brightness.

  Version: Ubuntu 12.04.4 LTS

  - Linux Version -
  linux:
    Installed: (none)
    Candidate: 3.2.0.58.69
    Version table:
       3.2.0.58.69 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
       3.2.0.23.25 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-58-generic 3.2.0-58.88
  ProcVersionSignature: Ubuntu 3.2.0-58.88-generic 3.2.53
  Uname: Linux 3.2.0-58-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: VT1802 Analog [VT1802 Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  crosswalk   2018 F.... pulseaudio
   /dev/snd/controlC0:  crosswalk   2018 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf7310000 irq 44'
     Mixer name	: 'VIA VT1802'
     Components	: 'HDA:11068446,10431487,00100000'
     Controls      : 31
     Simple ctrls  : 18
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xf7080000 irq 17'
     Mixer name	: 'Nvidia GPU 42 HDMI/DP'
     Components	: 'HDA:10de0042,10432119,00100100'
     Controls      : 12
     Simple ctrls  : 2
  Date: Thu Jan 30 01:56:56 2014
  HibernationDevice: RESUME=UUID=9e120375-84ba-4393-a169-35f243c10efa
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  MachineType: ASUSTeK COMPUTER INC. G75VW
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-58-generic root=UUID=eb4a342d-0d1e-421f-a355-5fb8eb65bb15 ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding.
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-58-generic N/A
   linux-backports-modules-3.2.0-58-generic  N/A
   linux-firmware                            1.79.9
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/21/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: G75VW.218
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G75VW
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrG75VW.218:bd08/21/2012:svnASUSTeKCOMPUTERINC.:pnG75VW:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG75VW:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: G75VW
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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