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[Bug 1148898] Re: HP Pavilion g7 - brightness keys are erratic

 

** Tags added: needs-full-computer-model needs-upstream-testing
regression-potential

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https://bugs.launchpad.net/bugs/1148898

Title:
  HP Pavilion g7 - brightness keys are erratic

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  The brightness keys work with stock 12.04.2, however, they are
  erratic.  For example, from full bright, I could hit the key several
  times and the screen will do nothing and then suddenly dim to almost
  the lower limit, while the indicator shows it slowly decreasing in
  brightness.

  Same for increasing brightness.  There is no set pattern, sometimes
  nothing happens at all when using one key, until I hit the other to
  reverse what I just tried to do.

  The keys DO work, they just work erratically.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-25-generic 3.5.0-25.39~precise1
  ProcVersionSignature: Ubuntu 3.5.0-25.39~precise1-generic 3.5.7.4
  Uname: Linux 3.5.0-25-generic x86_64
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 1: Generic [HD-Audio Generic], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1579 F.... pulseaudio
   /dev/snd/pcmC1D0c:   ubuntu     1579 F...m pulseaudio
   /dev/snd/controlC0:  ubuntu     1579 F.... pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  Card0.Amixer.info:
   Card hw:0 'HDMI'/'HDA ATI HDMI at 0xf0344000 irq 49'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100300'
     Controls      : 6
     Simple ctrls  : 1
  Card0.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card1.Amixer.info:
   Card hw:1 'Generic'/'HD-Audio Generic at 0xf0340000 irq 16'
     Mixer name	: 'IDT 92HD87B2/4'
     Components	: 'HDA:111d76d9,103c184b,00100107'
     Controls      : 18
     Simple ctrls  : 10
  Date: Wed Mar  6 02:51:35 2013
  HibernationDevice: RESUME=UUID=09dbe284-769a-4cba-95e3-b0c6e7c8d1f6
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: Hewlett-Packard HP Pavilion g7 Notebook PC
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=12f59f42-f1b9-49fc-af07-88195f43aeee ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-25-generic N/A
   linux-backports-modules-3.5.0-25-generic  N/A
   linux-firmware                            1.79.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/17/2012
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.21
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 184B
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 57.34
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.21:bd10/17/2012:svnHewlett-Packard:pnHPPaviliong7NotebookPC:pvr079F100000005010000020100:rvnHewlett-Packard:rn184B:rvr57.34:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion g7 Notebook PC
  dmi.product.version: 079F100000005010000020100
  dmi.sys.vendor: Hewlett-Packard

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