backlight problems on intel and new stuff

[Vedran Rodic]

Hi

I've also noticed backlight flickering (so pronounced that I was
afraid it might kill the backlight) on my Thinkpad X60s, when I
hibernate when using a VGA connected display. Laptop LCD is off when
in X, but when s2disk suspends X and goes to text mode, VGA out is
turned off, and I just see the flickering backlight while the progress
of s2disk is displayed on the Thinkpad LCD).

This is with the 2.3.2-2+lenny5 package from Debian, and it might be
fixed in the latest git.

Vedran

On Thu, Jan 8, 2009 at 10:08 PM, Sergio Monteiro Basto
<sergio at sergiomb.no-ip.org> wrote:
> Hi, for the records ,
>
> backlight has gone mad after upgrade to fedora 10 and I can't work,
> backlight flicks and flicks , especially after press lid button or
> hibernate.
> I don't found what component have the bug.
> My laptop Compaq nx6110 is an old laptop with almost 3 years of life
> time, which have an empty /sys/class/backlight/, to me seems to be the
> problem try control backlight when doesn't have ACPI registers and have
> one i915GM .
>
> I downgrade kernel to 2.6.26 , xorg server to 1.4.2 , Mesa to 7.0.4,
> libdrm to 2.3.0 , and xorg-x11-drv-intel to 2.2.1 , and backlight have
> cool down, after a while  .
>
> Any suggestion ?
>
> I try understand if the problem is in kernel or in mesa or in Intel
> drive but can't figure out where is the problem.
>
> Thanks,
> --
> Sérgio M. B.
>
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