Comment 92 for bug 765438

Hello,

I just learned that Ubuntu 12.10 has been released. Is the backlight bug
still an issue with this release? On my emachine 525 the backlight goes
out once the update starts to install. I am not able to see to complete
the installation.

Thank you.

On Fri, Sep 28, 2012 at 9:11 PM, Gilbert Dion <email address hidden> wrote:

> On my Acer emachines E725, kernel 3.2.0-31 generic does not fix it.
> Same as before. Last kernel to work is 2.6.31-41.
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (772050).
> https://bugs.launchpad.net/bugs/765438
>
> Title:
> On startup, the backlight is off on laptop
>
> Status in The Linux Kernel:
> Incomplete
> Status in “linux” package in Ubuntu:
> Triaged
> Status in “linux” package in Fedora:
> New
>
> 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 2.6.38.2
> 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
> CurrentDmesg:
> [ 29.430043] eth0: no IPv6 routers present
> [ 30.988586] EXT4-fs (sda7): re-mounted. Opts:
> errors=remount-ro,commit=0
> DRM.card0.DP.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///////wANr5kVAAAAAAcUAQOAIhN4Cj2VlFZPjigmUFQAAAABAQEBAQEBAQEBAQEBAQEBeh1W0lAAHjA8KDYAWMEQAAAYAAAA/gBOMTU2QjMtTDBCCiAgAAAA/gBDTU8KICAgICAgICAgAAAA/gBOMTU2QjMtTDBCCiAgAEg=
> DRM.card0.VGA.1:
> status: disconnected
> enabled: disabled
> dpms: Off
> modes:
> edid-base64:
> Date: Mon Apr 18 21:34:59 2011
> DistUpgraded: Fresh install
> DistroCodename: natty
> DistroVariant: ubuntu
> GdmLog1:
>
> GdmLog2:
>
> GraphicsCard:
> 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
> ProcEnviron:
> LANGUAGE=en_US:en
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> 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
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/linux/+bug/765438/+subscriptions
>

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