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[papukaija <522525@xxxxxxxxxxxxxxxxxx>]

** Tags added: oneiric

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https://bugs.launchpad.net/bugs/522525

Title:
  Brightness not adjusted when switching from AC to battery

Status in DeviceKit based power management D-Bus backend:
  Confirmed
Status in Gnome Powermanager:
  New
Status in “devicekit-power” package in Ubuntu:
  Triaged
Status in “gnome-power-manager” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: gnome-power-manager

  Hi,

  When swtiching from AC to battery (and back to AC), the screen
  brightness is not dimmed, while g-p-m is configured as it should (at
  least, I think it is).

  this is using an Acer Timeline 1810TZ with the latest available BIOS
  update (3303).

  The brightness can be adjusted using the fn keys or the brightness
  applet. Setting the default brightness via g-p-m preference window
  also works.

  I do have an /sys/class/backlight/acpi_video0/brightness file, which
  is set to the current brightness.

  I have also noticed that g-p-m needs a few seconds before updating its
  status when unplugging the laptop from AC (or plugging it again),
  which might means some information are incorrectly sent by acpi (?)
  but I am not sure what information should be provided to try and debug
  this issue.

  Cheers,
  Julien

  ProblemType: Bug
  Architecture: amd64
  Date: Tue Feb 16 10:13:27 2010
  DistroRelease: Ubuntu 9.10
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  Package: gnome-power-manager 2.28.1-0ubuntu1.3
  ProcEnviron:
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
  SourcePackage: gnome-power-manager
  Uname: Linux 2.6.31-19-generic x86_64

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