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[Bug 1178727] Re: 8086:0046 Screen brightness can not be adjusted in Raring with Intel Ironlake graphics

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Thu, 24 Oct 2013 11:29:42 -0000
Reply-to: Bug 1178727 <1178727@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Ethan Shalev, the next step is to bisect from 12.04 to 12.10 in order to
identify the offending commit. Could you please do this following
https://wiki.ubuntu.com/Kernel/KernelBisection ?

** Tags removed: kernel-bug-exists-upstream-3.12.0-031200rc6 kernel-bug-exists-upstream-v3.9
** Tags added: kernel-bug-exists-upstream-v3.12-rc6

** Tags added: needs-bisect

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

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https://bugs.launchpad.net/bugs/1178727

Title:
  8086:0046 Screen brightness can not be adjusted in Raring with Intel
  Ironlake graphics

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  What looks like a regression from this bug:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/573984

  This issue had been resolved, and I had no problem with 12.04 or
  12.10, but upon upgrading to 13.04, once again, I cannot adjust the
  screen brightness. It is stuck at 100%.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-19-generic 3.8.0-19.30
  ProcVersionSignature: Ubuntu 3.8.0-19.30-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:  ethan      2358 F.... pulseaudio
  CheckboxSubmission: 4463f48e66443bc710cec4d3024fcac7
  CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
  Date: Fri May 10 15:08:12 2013
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=c1607e74-253f-4660-bdb7-45f46947f909
  Lsusb:
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314]
  MachineType: Gateway NV79
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=da8a8682-2f9b-4878-8b46-6d23657e2137 ro quiet splash acpi_backlight=vendor 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: Upgraded to raring on 2013-04-26 (14 days ago)
  dmi.bios.date: 04/25/2011
  dmi.bios.vendor: Gateway
  dmi.bios.version: V1.08
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NV79
  dmi.board.vendor: Gateway
  dmi.board.version: V1.08
  dmi.chassis.type: 10
  dmi.chassis.vendor: Gateway
  dmi.chassis.version: V1.08
  dmi.modalias: dmi:bvnGateway:bvrV1.08:bd04/25/2011:svnGateway:pnNV79:pvrV1.08:rvnGateway:rnNV79:rvrV1.08:cvnGateway:ct10:cvrV1.08:
  dmi.product.name: NV79
  dmi.product.version: V1.08
  dmi.sys.vendor: Gateway

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