[Bug 859161] [NEW] unplug AC power, not reduce brightness

[shadow]

Public bug reported:

HP 4310s laptop.
I plug/unplug AC power, brightness not change. I can change britness with hotkey, only auto brightness reduce not work.

In gconf-editor: 
/apps/gnome-power-manager/backlight/battery_reduce is "on"
/apps/gnome-power-manager/backlight/brightness_ac is 100
/apps/gnome-power-manager/backlight/brightness_dim_battery is 50

Ubuntu 11.04 works well.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: acpid 1:2.0.10-1ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
Date: Sun Sep 25 22:08:05 2011
ExecutablePath: /usr/sbin/acpid
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110911)
ProcEnviron: PATH=(custom, no user)
SourcePackage: acpid
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: acpid (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 oneiric

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https://bugs.launchpad.net/bugs/859161

Title:
  unplug AC power, not reduce brightness

Status in “acpid” package in Ubuntu:
  New

Bug description:
  HP 4310s laptop.
  I plug/unplug AC power, brightness not change. I can change britness with hotkey, only auto brightness reduce not work.

  In gconf-editor: 
  /apps/gnome-power-manager/backlight/battery_reduce is "on"
  /apps/gnome-power-manager/backlight/brightness_ac is 100
  /apps/gnome-power-manager/backlight/brightness_dim_battery is 50

  Ubuntu 11.04 works well.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: acpid 1:2.0.10-1ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
  Uname: Linux 3.0.0-10-generic i686
  ApportVersion: 1.23-0ubuntu1
  Architecture: i386
  Date: Sun Sep 25 22:08:05 2011
  ExecutablePath: /usr/sbin/acpid
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110911)
  ProcEnviron: PATH=(custom, no user)
  SourcePackage: acpid
  UpgradeStatus: No upgrade log present (probably fresh install)

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