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[Bug 720912] Re: Maverick (through Precise) regression: Dell M1330 backlight brightness messed up


Ryan Thompson, thank you for taking the time to report this bug and helping to make Ubuntu better. Could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 720912

** Package changed: ubuntu => linux (Ubuntu)

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

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

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  Maverick (through Precise) regression: Dell M1330 backlight brightness
  messed up

Status in “linux” package in Ubuntu:

Bug description:
  The Dell M1330 backlight has exactly 8 levels of brightness. I expect
  each press of the brightness adjustment keys to change the brightness
  by one level. When I use the keyboard to adjust the brightness in
  GNOME, it sometimes changes by one level, and sometimes changes by two

  In Karmic, the buttons worked like I have describe above. In Lucid, everything worked correctly. In Maverick (and every subsequent release at least through Precise), we're back to the same behavior as in Karmic. So this is a regression in functionality.
  Architecture: amd64
  DistroRelease: Ubuntu 11.04
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  NonfreeKernelModules: nvidia wl
  Package: acpid 1:2.0.7-1ubuntu2
  PackageArchitecture: amd64
   PATH=(custom, user)
  ProcVersionSignature: Ubuntu 2.6.38-11.48-generic
  Tags:  natty running-unity
  Uname: Linux 2.6.38-11-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout fuse lpadmin plugdev sambashare

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