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[Danny Wood <884041@xxxxxxxxxxxxxxxxxx>]

This is a rather annoying issue.

Looking through all the power manager settings it seems they have
removed the brightness_battery and brightness_ac settings that used to
achieve this. Hopefully it will be back in 12.04

Until then a possible solution is to write a script that sets the back-
light brightness on ac -> battery and back.

** Package changed: gnome-settings-daemon (Ubuntu) => gnome-power-
manager (Ubuntu)

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https://bugs.launchpad.net/bugs/884041

Title:
  Screen brightness not adjusted when switching from AC to battery

Status in “gnome-power-manager” package in Ubuntu:
  Confirmed

Bug description:
  I upgraded my Samsung NC 10 to Oneiric recently. Since then, switching
  between AC and battery power has no effect to screen brightness.
  Adjusting the brightness manually works but is quite annoying.

  I added the regression tag since this didn't happen in Natty and
  older.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: gnome-settings-daemon 3.2.0-0ubuntu5
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  Date: Mon Oct 31 01:00:12 2011
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Release i386 (20091028.4)
  SourcePackage: gnome-settings-daemon
  UpgradeStatus: Upgraded to oneiric on 2011-10-01 (29 days ago)

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