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Bug#627372: [2.6.32 -> 2.6.38 regression] GM45: Console turns black during boot



Hi

I compiled both versions as per your instructions, and the behaviour is the same each time.

I need to use setpci ... to get the screen backlight on.

Do you need any additional information?

Alan

On Apr 26, 2012 7:23 PM, "Jonathan Nieder" <jrnieder@gmail.com> wrote:
tags 627372 + upstream patch moreinfo
quit

Hi Alan,

Alan Zimmerman wrote:

> Console turns black during boot, roughly at the point where normally the
> console font changes.

Thanks again.  At last there is a patch to test (attached).  Could you
try it?

Possible instructions:

 0. Prerequisites

       apt-get install git build-essential

 1. Get the kernel history if you don't already have it

       git clone \
         git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

 2. Add point releases

       cd linux
       git remote add stable \
         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
       git fetch stable

 3. Configure, build, and test

       git checkout stable/linux-3.2.y
       cp /boot/config-$(uname -r) .config; # current configuration
       make localmodconfig; # optional: minimize configuration
       make deb-pkg; # optionally with -j<num> for parallel build
       dpkg -i ../<name of package>; # as root
       reboot

   Hopefully it reproduces the black screen at boot.

 4. Try the patch

       cd linux
       git am -3sc /path/to/the/patch
       make deb-pkg; # maybe with -j4
       dpkg -i ../<name of package>; # as root
       reboot

An alternative set of instructions is at [1].

If it works, we can try applying the patch and pass this information
upstream to help them decide when to roll it out.

Hope that helps,
Jonathan

[1] http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-common-official
or the corresponding page in the debian-kernel-handbook package

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