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[Bug 1529154] Re: Brightness control does not work

 

Juan Manuel, thank you for reporting this and helping make Ubuntu
better.

As per http://support.lenovo.com/us/en/products/Laptops-and-
netbooks/IdeaPad-U-Series-
laptops/IdeaPad-U310?linkTrack=Homepage:Body_Search%20Products an update
to your computer's buggy and outdated BIOS is available (65CN99WW). If
you update to this following
https://help.ubuntu.com/community/BIOSUpdate does it change anything?

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement or not.
3) Please mark this report Status New. If it's not reproducible, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-65cn99ww

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

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

-- 
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https://bugs.launchpad.net/bugs/1529154

Title:
  Brightness control does not work

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  The brightness level of the screen does not change, despite of using
  the control brightness keys in the keyboard, or the control in
  "Brightness & Lock" in the "System Settings".

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8.1
  ProcVersionSignature: Ubuntu 3.19.0-42.48~14.04.1-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-42-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.11
  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
  CurrentDesktop: Unity
  Date: Thu Dec 24 15:25:11 2015
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3903]
  InstallationDate: Installed on 2015-12-24 (0 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: LENOVO IdeaPad U310
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-42-generic root=UUID=04718e80-4365-408d-a771-8af3458df9cb ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/04/2012
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 65CN89WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lenovo
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900004WIN8 STD SGL
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo U310
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr65CN89WW:bd09/04/2012:svnLENOVO:pnIdeaPadU310:pvrLenovoU310:rvnLENOVO:rnLenovo:rvr31900004WIN8STDSGL:cvnLENOVO:ct10:cvrLenovoU310:
  dmi.product.name: IdeaPad U310
  dmi.product.version: Lenovo U310
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri N/A
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core N/A
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Thu Dec 24 15:21:58 2015
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4140 
   vendor                                     AUO
  xserver.version: 2:1.17.1-0ubuntu3~trusty1

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