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[Bug 1244645] Re: Brightness is at 100 percent and will not change

 

Phil, You have an AMD system. This is for an Intel system with Intel
Graphics. This hasn't worked in saucy or trusty for a number of people
as there are posts on ask ubuntu and the ubuntu forums about this issue

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https://bugs.launchpad.net/bugs/1244645

Title:
  Brightness is at 100 percent and will not change

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I have seen this issue before as it was in the 13.10 betas. When I try
  any setting and method to change the brigtness it fails and remains at
  100%. PLease feel free to contact me to get more information

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu6
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.6-0ubuntu1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDmesg:
   [   22.303888] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
   [   22.304339] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
   [   54.899779] ISO 9660 Extensions: Microsoft Joliet Level 3
   [   54.952839] ISO 9660 Extensions: RRIP_1991A
  Date: Fri Oct 25 07:36:52 2013
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus: bcmwl, 6.30.223.141+bdcom, 3.11.0-12-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0106] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3975]
  InstallationDate: Installed on 2013-10-25 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20131021.1)
  MachineType: LENOVO 1068BAU
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic.efi.signed root=UUID=96b54589-c267-4291-b79c-3ff62dddb522 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/27/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 44CN43WW
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Emerald Lake
  dmi.board.vendor: LENOVO
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnLENOVO:bvr44CN43WW:bd10/27/2011:svnLENOVO:pn1068BAU:pvrLenovoB570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
  dmi.product.name: 1068BAU
  dmi.product.version: Lenovo B570
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.46-3ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.2-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.2-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
  xserver.bootTime: Fri Oct 25 07:34:51 2013
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 826 
   vendor                                     LGD
  xserver.version: 2:1.14.3-3ubuntu3

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