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[Arne Henningsen <arne.henningsen@xxxxxxxxx>]

apport information

** Tags added: apport-collected trusty

** Description changed:

  I cannot change the screen brightness on my HP Elitebook 8560w. If I use
  the keys for changing the screen brightness (fn + f9 or fn + f10), the
  on-screen display appears and the displayed percentage changes as
  intended but the actual screen brightness does not change (i.e. it
  remains at full brightness). Similarly, if I do not use my computer for
  some time, the on-screen display appears and indicates the the screen
  brightness is reduced (lower percentage) but the actual screen
  brightness remains unchanged (at full brightness). I have this computer
  since November 2011 and I had always the latest Kubuntu version
  installed. Changing the screen brightness always worked until and
  including Kubuntu 13.10. However, it stopped working when I upgraded to
  Kubuntu 14.04. I have upgraded my computer's BIOS to the latest version
  (F.42) but this did not help. As I also experience another bug (1337579)
  with Kubuntu 14.04, I have upgraded the kernel to the upstream kernel
  (3.14.4-031404) and a mainline kernel (3.16.0-031600rc6) but the bug
  occurs with all three kernel versions. Further information on my
  computer system is available here:
  
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1337579
  
- [Unfortunately, installing the "upstream" kernel and the "mainline"
- kernel did not create additional entries in the boot menu so that I
- cannot choose the kernel when I (re)boot my system. As the command
- 'uname -a' reported the version of the upstream kernel and currently
- reports the version of the mainline kernel, I assume that I ran the
- upstream kernel and I am currently running the mainline kernel.
- Unfortunately, I cannot report this bug with the command 'ubuntu-bug
- linux', because I do not know how to boot my system with the original
- kernel.]
+ [Unfortunately, installing the "upstream" kernel and the "mainline" kernel did not create additional entries in the boot menu so that I cannot choose the kernel when I (re)boot my system. As the command 'uname -a' reported the version of the upstream kernel and currently reports the version of the mainline kernel, I assume that I ran the upstream kernel and I am currently running the mainline kernel. Unfortunately, I cannot report this bug with the command 'ubuntu-bug linux', because I do not know how to boot my system with the original kernel.]
+ --- 
+ ApportVersion: 2.14.1-0ubuntu3.2
+ Architecture: amd64
+ CurrentDesktop: KDE
+ DistroRelease: Ubuntu 14.04
+ InstallationDate: Installed on 2012-02-12 (895 days ago)
+ InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
+ NonfreeKernelModules: nvidia
+ Package: linux (not installed)
+ Tags:  trusty
+ Uname: Linux 3.16.0-031600rc6-generic x86_64
+ UnreportableReason: The running kernel is not an Ubuntu kernel
+ UpgradeStatus: Upgraded to trusty on 2014-05-01 (86 days ago)
+ UserGroups: adm admin cdrom dialout lp lpadmin plugdev sambashare vboxusers
+ _MarkForUpload: True

** Attachment added: "ProcEnviron.txt"
   https://bugs.launchpad.net/bugs/1349002/+attachment/4163536/+files/ProcEnviron.txt

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

-- 
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https://bugs.launchpad.net/bugs/1349002

Title:
  Screen brightness cannot be changed on HP EliteBook 8560w

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I cannot change the screen brightness on my HP Elitebook 8560w. If I
  use the keys for changing the screen brightness (fn + f9 or fn + f10),
  the on-screen display appears and the displayed percentage changes as
  intended but the actual screen brightness does not change (i.e. it
  remains at full brightness). Similarly, if I do not use my computer
  for some time, the on-screen display appears and indicates the the
  screen brightness is reduced (lower percentage) but the actual screen
  brightness remains unchanged (at full brightness). I have this
  computer since November 2011 and I had always the latest Kubuntu
  version installed. Changing the screen brightness always worked until
  and including Kubuntu 13.10. However, it stopped working when I
  upgraded to Kubuntu 14.04. I have upgraded my computer's BIOS to the
  latest version (F.42) but this did not help. As I also experience
  another bug (1337579) with Kubuntu 14.04, I have upgraded the kernel
  to the upstream kernel (3.14.4-031404) and a mainline kernel
  (3.16.0-031600rc6) but the bug occurs with all three kernel versions.
  Further information on my computer system is available here:

  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1337579

  [Unfortunately, installing the "upstream" kernel and the "mainline" kernel did not create additional entries in the boot menu so that I cannot choose the kernel when I (re)boot my system. As the command 'uname -a' reported the version of the upstream kernel and currently reports the version of the mainline kernel, I assume that I ran the upstream kernel and I am currently running the mainline kernel. Unfortunately, I cannot report this bug with the command 'ubuntu-bug linux', because I do not know how to boot my system with the original kernel.]
  --- 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2012-02-12 (895 days ago)
  InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  Tags:  trusty
  Uname: Linux 3.16.0-031600rc6-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to trusty on 2014-05-01 (86 days ago)
  UserGroups: adm admin cdrom dialout lp lpadmin plugdev sambashare vboxusers
  _MarkForUpload: True

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