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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1431002

Title:
  Brightness Issue

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I cannot figure out how to change the brightness for my Lenovo Y-510P
  laptop. I go to brightness settings and it will not let me change the
  brightness at all and defaults to the brightest setting and drains my
  battery. I also have specific keys to change the brightness which also
  will not work. Any help would be greatly appreciated. I am not much of
  a computer programmer so I am not very savvy so any help would be
  greatly appreciated.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-31-generic 3.16.0-31.41
  ProcVersionSignature: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5
  Uname: Linux 3.16.0-31-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   david      2298 F...m pulseaudio
   /dev/snd/controlC1:  david      2298 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Mar 11 16:25:54 2015
  HibernationDevice: RESUME=UUID=86319530-7e51-4f31-a1be-ab59324c82a7
  InstallationDate: Installed on 2015-02-27 (12 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 20217
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic.efi.signed root=UUID=39e12379-9c17-4970-81f1-c229fed87dc6 ro quiet splash nomodeset acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-31-generic N/A
   linux-backports-modules-3.16.0-31-generic  N/A
   linux-firmware                             1.138.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/18/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 74CN44WW(V3.05)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: VIQY0Y1
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003STD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Y510P
  dmi.modalias: dmi:bvnLENOVO:bvr74CN44WW(V3.05):bd09/18/2013:svnLENOVO:pn20217:pvrLenovoIdeaPadY510P:rvnLENOVO:rnVIQY0Y1:rvr31900003STD:cvnLENOVO:ct10:cvrLenovoIdeaPadY510P:
  dmi.product.name: 20217
  dmi.product.version: Lenovo IdeaPad Y510P
  dmi.sys.vendor: LENOVO

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