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[Bug 1173725] Re: [Acer Aspire V5-171] Backlight cannot be adjusted unless passing acpi_backlight=vendor

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Nils Sabelstrom <nilssab@xxxxxxxxx>
Date: Fri, 30 May 2014 07:32:00 -0000
Reply-to: Bug 1173725 <1173725@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

added a duplicate bug generated by ubuntu-bug. 
is there a way to make it upload the information to a specific bug and not make a new bug entry? or is it fine to just make duplicates? should I also make one using the newest kernel?

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https://bugs.launchpad.net/bugs/1173725

Title:
  [Acer Aspire V5-171] Backlight cannot be adjusted unless passing
  acpi_backlight=vendor

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The boot parameter is suggested as a fix for this model by
  http://www.linlap.com/acer_aspire_v5-171

  (so if it would help, I would suggest classing this bug as
  "confirmed").

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-19-generic 3.8.0-19.29 [modified: boot/vmlinuz-3.8.0-19-generic]
  ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
  Uname: Linux 3.8.0-19-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  alan       1919 F.... pulseaudio
  Date: Sat Apr 27 19:59:23 2013
  InstallationDate: Installed on 2013-04-27 (0 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Acer V5-171
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic.efi.signed root=UUID=ad03cbd3-39e0-4f7e-b0ab-e1ef3abaa88e ro acpi_backlight=vendor quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-19-generic N/A
   linux-backports-modules-3.8.0-19-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/14/2012
  dmi.bios.vendor: Acer
  dmi.bios.version: V2.04
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: Mimic
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V2.04
  dmi.modalias: dmi:bvnAcer:bvrV2.04:bd09/14/2012:svnAcer:pnV5-171:pvrV2.04:rvnAcer:rnMimic:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.04:
  dmi.product.name: V5-171
  dmi.product.version: V2.04
  dmi.sys.vendor: Acer

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