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[Andre <850749@xxxxxxxxxxxxxxxxxx>]

This bug affects Intel 915GM (i915) too (IBM Thinkpad X41). I have
turned off 'dim'. My screen is switched off after 10 minutes. In many
cases it does not turn on again completely. I can only see a very dark
picture of whatever should be on the screen. I can even jump between
ttys and back to the desktop with  no effect. Hotkeys for brightness
don't allow to increase brightness then. The only thing that helps is
going to standby (closing the lid, because I can't really see where I'm
clicking) and waking up, or killing the session (Alt + Print + K).

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https://bugs.launchpad.net/bugs/850749

Title:
  Display unreadable after dimming

Status in “gnome-settings-daemon” package in Ubuntu:
  In Progress

Bug description:
  Once my laptop screen is dimmed I can not read it any more. Dimming
  happens even when "dim" is not selected in the "screen" settings. It
  also happens before logging in. There is nothing I can do to un-dim
  the screen (i.e. moving the mouse, keyboard, but also using the
  contrast/brightness keys). When the screen is not dimmed, it is
  possible to adjust brightness etc using the contrast/brightness keys.

  If the laptop is suspended/resumed the screen will be back to normal
  until it decides to dim the screen again.

  This is reproducible and can be repeated as many times as necessary.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: xorg 1:7.6+7ubuntu7
  ProcVersionSignature: Ubuntu 3.0.0-11.17-generic 3.0.4
  Uname: Linux 3.0.0-11-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.22.1-0ubuntu2
  Architecture: i386
  CompizPlugins: [core,composite,opengl,decor,dbus,compiztoolbox,snap,ring,imgpng,resize,move,screenshot,regex,place,resizeinfo,put,annotate,grid,vpswitch,mousepoll,commands,session,animation,thumbnail,fade,cube,rotate,expo,unityshell]
  CompositorRunning: compiz
  Date: Thu Sep 15 11:00:12 2011
  DistUpgraded: Log time: 2011-08-22 16:01:49.906813
  DistroCodename: oneiric
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
  GraphicsCard:
   Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 03) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company NC6220 [103c:308a]
     Subsystem: Hewlett-Packard Company Device [103c:308a]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110131)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 002: ID 03f0:011d Hewlett-Packard Integrated Bluetooth Module
  MachineType: Hewlett-Packard HP Compaq nc6220 (EA766UC#ABB)
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   LC_TIME=en_ZA.utf8
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   LC_MESSAGES=en_ZA.utf8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-11-generic root=UUID=3cd4d9b5-f50a-41d2-8099-63d1181c43d8 ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.usernamedoff=7
  SourcePackage: xorg
  Symptom: display
  UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code -11:
  UpgradeStatus: Upgraded to oneiric on 2011-09-15 (0 days ago)
  dmi.bios.date: 02/27/2007
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68DTU Ver. F.13
  dmi.board.name: 308A
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 40.22
  dmi.chassis.asset.tag: CNU6082483
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68DTUVer.F.13:bd02/27/2007:svnHewlett-Packard:pnHPCompaqnc6220(EA766UC#ABB):pvrF.13:rvnHewlett-Packard:rn308A:rvrKBCVersion40.22:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP Compaq nc6220 (EA766UC#ABB)
  dmi.product.version: F.13
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.5.94+bzr2803-0ubuntu1
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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