kernel-packages team mailing list archive

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

Pawel Kot, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc3

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

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

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Summary changed:

- screen backlight changes automatically for no reason
+ [HP EliteBook 8540w] Screen backlight changes automatically for no reason

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/908742

Title:
  10de:0a3c [HP EliteBook 8540w] Screen backlight changes automatically
  for no reason

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  When working on HP EliteBook 8540w the screen gets lighter (up to 100%
  brightness) and then darker (down to ~50% brightness). And it goes on
  and on. It's kind of annoying. I think it was not like that before
  upgrade to 11.10.

  I have the screen setting to dim the screen on inactivity turned off.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-14-generic 3.0.0-14.23
  ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
  Uname: Linux 3.0.0-14-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  pkot      17648 F.... pulseaudio
   /dev/snd/controlC0:  pkot      17648 F.... pulseaudio
  CRDA: Error: [Errno 2] Nie ma takiego pliku ani katalogu
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd7520000 irq 53'
     Mixer name	: 'IDT 92HD75B3X5'
     Components	: 'HDA:111d7603,103c1521,00100202 HDA:11c11040,103c3066,00100200'
     Controls      : 14
     Simple ctrls  : 9
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xd3000000 irq 16'
     Mixer name	: 'Nvidia GPU 0a HDMI/DP'
     Components	: 'HDA:10de000a,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  Date: Mon Dec 26 12:31:14 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  MachineType: Hewlett-Packard HP EliteBook 8540w
  PccardctlIdent:
   Socket 0:
     product info: "RICOH", "Bay8Controller", "", ""
     manfid: 0x0000, 0x0000
     function: 254 (unknown)
  PccardctlStatus:
   Socket 0:
     3.3V 16-bit PC Card
     Subdevice 0 (function 0) bound to driver "pata_pcmcia"
  ProcEnviron:
   PATH=(custom, user)
   LANG=pl_PL.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-14-generic root=UUID=e1ae4207-8aba-4238-b680-459cfadf7b6d ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-14-generic N/A
   linux-backports-modules-3.0.0-14-generic  N/A
   linux-firmware                            1.60
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: Upgraded to oneiric on 2011-12-16 (9 days ago)
  dmi.bios.date: 11/25/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68CVD Ver. F.0E
  dmi.board.name: 1521
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 32.33
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68CVDVer.F.0E:bd11/25/2010:svnHewlett-Packard:pnHPEliteBook8540w:pvr:rvnHewlett-Packard:rn1521:rvrKBCVersion32.33:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 8540w
  dmi.sys.vendor: Hewlett-Packard

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