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[Bug 581076] Re: HP Compaq 2230s laptop: Screen flickers when screen brightness dimmed

 

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  Using Ubuntu on a HP Compaq 2230s notebook (standard install) the screen
  can be dimmed via Fn+Keys or xbacklight. However the screen will flicker
  slightly when dimmed. The effect is most visible when displaying a
  colorful fullscreen image. The effect could be reproduced with other
  Linux distributions but not with the preinstalled Windows OS.
  
  Update: The bug can be reproduced on Hardy, Jaunty, Karmic and Lucid.
  ---
  Architecture: amd64
  DistroRelease: Ubuntu 10.04
  DkmsStatus: Error: [Errno 2] No such file or directory
  EcryptfsInUse: Yes
  MachineType: Hewlett-Packard HP 2230s
  Package: xserver-xorg-video-intel 2:2.9.1-3ubuntu5
  PackageArchitecture: amd64
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-22-generic root=/dev/mapper/linux-jaunty ro quiet splash
  ProcEnviron:
   LANG=de_DE.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
  Tags: lucid lucid
  Uname: Linux 2.6.32-22-generic x86_64
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare users www-data
  dmi.bios.date: 03/05/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68PHU Ver. F.08
  dmi.board.name: 3037
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 11.17
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68PHUVer.F.08:bd03/05/2009:svnHewlett-Packard:pnHP2230s:pvrF.08:rvnHewlett-Packard:rn3037:rvrKBCVersion11.17:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP 2230s
  dmi.product.version: F.08
  dmi.sys.vendor: Hewlett-Packard
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       x86_64
   kernel:             2.6.32-22-generic
+ 
+ 
+ [lspci]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
+     	Subsystem: Hewlett-Packard Company Device [103c:3037]

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https://bugs.launchpad.net/bugs/581076

Title:
  HP Compaq 2230s laptop: Screen flickers when screen brightness dimmed


References