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[Launchpad Bug Tracker <734305@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/734305

Title:
  Using Keyboard to Change Backlight causes gdm to become non-responsive

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

Bug description:
  Ubuntu 11.04 Alpha3
  Running on an Acer 5810TZ, in prior versions 10.10 and 10.04 the adjusting the display brightness via the hotkeys would lock up the whole system graphically, although some have reported the system was running underneath, I was unable to test.  Now the brightness keys work correctly, however afterwards the top panel and applications ignore any mouse / keyboard input, however brightness can still be adjusted.  When adjusting the brightness the indicator does not show the brightness level (as it does for volume).  In versions 10.10 of both xubuntu and kubuntu the hotkeys did not cause any issues.  The problem seems to be specific to ubuntu specifically something in gnome.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6~3ubuntu11
  ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
  Uname: Linux 2.6.38-6-generic x86_64
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
  CompositorRunning: compiz
  DRM.card0.DP.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.DP.2:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.HDMI.A.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.LVDS.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1366x768
   edid-base64: AP///////wAw5AICAAAAAAATAQOAIxN4Cihll1lUjiceUFQAAAABAQEBAQEBAQEBAQEBAQEBVh1WxlAAIDAwIDUAWcIQAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBMRyBEaXNwbGF5CiAgAAAA/ABMUDE1NldIMy1UTEExADk=
  DRM.card0.VGA.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  Date: Sun Mar 13 08:43:47 2011
  DistUpgraded: Log time: 2011-03-13 05:56:31.558372
  DistroCodename: natty
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:022b]
     Subsystem: Acer Incorporated [ALI] Device [1025:022b]
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  MachineType: Acer Aspire 5810T
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic root=UUID=2acb9a76-539e-4641-905a-b98ee4234e3c ro i8042.nomux acpi_backlight=vendor quiet splash vt.handoff=7
  Renderer: Unknown
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to natty on 2011-03-13 (0 days ago)
  dmi.bios.date: 04/13/2010
  dmi.bios.vendor: INSYDE
  dmi.bios.version: V1.35
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Aspire 5810T
  dmi.board.vendor: Acer
  dmi.board.version: Base Board Version
  dmi.chassis.type: 1
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvrV1.35:bd04/13/2010:svnAcer:pnAspire5810T:pvrV1.35:rvnAcer:rnAspire5810T:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
  dmi.product.name: Aspire 5810T
  dmi.product.version: V1.35
  dmi.sys.vendor: Acer
  version.compiz: compiz 1:0.9.4-0ubuntu4
  version.libdrm2: libdrm2 2.4.23-1ubuntu3
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu1
  version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu5

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