kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Tags added: latest-bios-a06

** Tags added: kernel-bug-exists-upstream-3.14-rc2

** Tags added: regression-release

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

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https://bugs.launchpad.net/bugs/1280394

Title:
  8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys do not
  work on kernels 3.11 and 3.13

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Brightness keys Fn+F4 and Fn+F5 (decrease and increase brightness) do not work on 13.10 and 14.04.
  On 12.04 (up to 12.04.3) and 13.04 worked ok.
  That is, up to ubuntu repository kernel 3.8 the brightness keys worked ok.

  On ubuntu repository kernels 3.11 and 3.13, the brightness keys do not
  work. (this includes 12.04.4 that has kernel 3.11).

  I currently have installed 14.04 with kernel 3.13.0-8.

  However, brightness can be adjusted just fine by going to system settings > Brightness Control and moving the slider back and forth.
  So the problem is specific only to the function keys.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-8-generic 3.13.0-8.28
  ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2
  Uname: Linux 3.13.0-8-generic x86_64
  ApportVersion: 2.13.2-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mike       1549 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Feb 14 20:01:28 2014
  HibernationDevice: RESUME=UUID=4ffb442c-e2bf-4dbd-8a25-6a4ef0e346f2
  InstallationDate: Installed on 2014-01-25 (19 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124)
  MachineType: Dell Inc. Dell System Inspiron N411Z
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-8-generic root=UUID=308a58c8-4425-4ae1-b9a5-86bee1de5030 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-8-generic N/A
   linux-backports-modules-3.13.0-8-generic  N/A
   linux-firmware                            1.124
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:

  dmi.bios.date: 09/10/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 0YWNPW
  dmi.board.vendor: Dell Inc.
  dmi.board.version: FAB1
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd09/10/2012:svnDellInc.:pnDellSystemInspironN411Z:pvr:rvnDellInc.:rn0YWNPW:rvrFAB1:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System Inspiron N411Z
  dmi.sys.vendor: Dell Inc.

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