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[Launchpad Bug Tracker <534677@xxxxxxxxxxxxxxxxxx>]

[Expired for gnome-power-manager (Ubuntu) because there has been no
activity for 60 days.]

** Changed in: gnome-power-manager (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/534677

Title:
  [lucid] Broken backlight control with Radeon open-source drivers

Status in “gnome-power-manager” package in Ubuntu:
  Expired
Status in “xserver-xorg-video-ati” package in Ubuntu:
  Expired

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

  With the deprecation of hal, gnome-power-manager must rely on the
  BACKLIGHT property in xrandr; however, the ATI open-source drivers
  seem not to support this property (regardless of whether KMS is
  enabled).

  With HAL removed, g-p-m does not offer brightness controls at all.
  Additionally, even if I reinstall HAL, the backlight control still
  does not work -- upon pressing the brightness control keys, notify-OSD
  shows the slider at a fixed value, but the slider does not move.

  I have attached (originally to bug 38057915 ) a log of gnome-power-
  manager --verbose: http://launchpadlibrarian.net/38057915/g-p-m.log
  -- Note that gnome-power-manager seems to be repeatedly setting the
  same brightness level with each keypress.

  The Gnome brightness panel applet also behaves strangely: sometimes it
  works, and sometimes it displays "Cannot get laptop panel brightness".

  I am using Lucid with xorg-edgers, currently booted into kernel-ppa
  2.6.33, but this issue also occurs with normal Lucid packages.

  ProblemType: Bug
  Architecture: amd64
  Date: Mon Mar  8 13:17:10 2010
  DistroRelease: Ubuntu 10.04
  Package: gnome-power-manager 2.29.91-0ubuntu4
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: gnome-power-manager
  Uname: Linux 2.6.33-996-generic x86_64
  --- 
  Architecture: amd64
  DistroRelease: Ubuntu 10.04
  GnomeSessionIdleInhibited: No
  GnomeSessionInhibitors: None
  GnomeSessionSuspendInhibited: No
  MachineType: Hewlett-Packard HP EliteBook 8530w
  Package: xserver-xorg-video-ati 1:6.12.191+git20100314.67e81c8f-0ubuntu0sarvatt
  PackageArchitecture: amd64
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.33-996-generic root=UUID=538e1c30-c976-4363-ae30-eaaa7704dbe0 ro vga16fb.DoNotWant=1 acpi_osi="!Windows 2009" pciehp.pciehp_debug=1 console=ttyS0,115200 console=tty0 radeon.dynclks=1 radeon.modeset=1 radeon.dynpm=1 quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  Tags: lucid lucid
  Uname: Linux 2.6.33-996-generic x86_64
  UnreportableReason: This is not a genuine Ubuntu package
  UserGroups: adm admin cdrom dialout lpadmin netdev plugdev sambashare vboxusers
  dmi.bios.date: 12/08/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68PDV Ver. F.11
  dmi.board.name: 30E7
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 90.26
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68PDVVer.F.11:bd12/08/2009:svnHewlett-Packard:pnHPEliteBook8530w:pvrF.11:rvnHewlett-Packard:rn30E7:rvrKBCVersion90.26:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 8530w
  dmi.product.version: F.11
  dmi.sys.vendor: Hewlett-Packard
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       x86_64
   kernel:             2.6.33-996-generic

  
  [lspci]
  00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07)
      	Subsystem: Hewlett-Packard Company Device [103c:30e7]
  01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon HD 3650 [1002:9591]
      	Subsystem: Hewlett-Packard Company Device [103c:3604]

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