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[Bug 765438] Re: 8086:2a42 [eMachines E527] On startup, the backlight is off on laptop


Travis DePrato, could you please confirm this issue exists with the
latest development release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains,
could you please run the following command in the development release
from a Terminal (Applications->Accessories->Terminal), as it will
automatically gather and attach updated debug information to this

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:

where VERSION-NUMBER is the version number of the kernel you tested. For example:

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:

If the mainline kernel does not fix this bug, please add the following tags:

As well, please remove the tag:

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your

** Package changed: linux (Fedora) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: bios-outdated-v1.06 needs-upstream-testing

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  8086:2a42 [eMachines E527] On startup, the backlight is off on laptop

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:

Bug description:
  When Ubuntu starts up, the back-light is off on my laptop.  I can plug
  it into an external monitor and the display is fine.  I can easily
  turn the back-light on with "sudo setpci -s 00:02.0 F4.B=[HEX]" where
  00 is the brightest and FF is off.  In past distributions, the GUI-
  based brightness utilities did not work and I used this command to
  change by back-light brightness.  I know that there are many people
  who can not use back-light GUI-utilities on the past distributions as
  well.  This issue also occurs if I close my screen and raise it again.

  This issue also effected the installation process as well as when I
  was using the i686 installer.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6+4ubuntu3
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic
  Uname: Linux 2.6.38-8-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
   [   29.430043] eth0: no IPv6 routers present
   [   30.988586] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
   status: disconnected
   enabled: disabled
   dpms: Off
   status: connected
   enabled: enabled
   dpms: On
   modes: 1366x768
   status: disconnected
   enabled: disabled
   dpms: Off
  Date: Mon Apr 18 21:34:59 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu


   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:0459]
     Subsystem: Acer Incorporated [ALI] Device [1025:0459]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
  MachineType: eMachines eMachines E527
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=83376c0e-9440-4ba9-bbdb-363565bf5e72 ro quiet splash vt.handoff=7
  Renderer: Unknown
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/16/2010
  dmi.bios.vendor: eMachines
  dmi.bios.version: V1.01
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: eMachines E527
  dmi.board.vendor: eMachines
  dmi.board.version: V1.01
  dmi.chassis.type: 10
  dmi.chassis.vendor: eMachines
  dmi.chassis.version: V1.01
  dmi.modalias: dmi:bvneMachines:bvrV1.01:bd04/16/2010:svneMachines:pneMachinesE527:pvrV1.01:rvneMachines:rneMachinesE527:rvrV1.01:cvneMachines:ct10:cvrV1.01:
  dmi.product.name: eMachines E527
  dmi.product.version: V1.01
  dmi.sys.vendor: eMachines
  version.compiz: compiz 1:0.9.4+bzr20110411-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu12
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu1
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

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