ubuntu-x-swat team mailing list archive

[Twig <twighome@xxxxxxxxxxxx>]

I had more time than I orginally thought today to do some further
testing (and lots of googling) and have made some progress.

The mainline 2.6.31 rc3 kernel worked correctly. I can boot the
problematic rc3 kernel by passing the nomodeset parameter.

If I pass the VGA = ask parameter to the rc2 kernel I get a list of VGA
modes. If I do the same thing with the rc3 kernel I get the same list of
VGA modes plus a second set of VESA modes (none of which appear to
work).

That led me to this bug:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
vesa/+bug/401214

and I've tried turning debugging on as suggested with:

echo 1 | sudo tee /sys/module/drm/parameters/debug

Although didn't get any extra output.

A little more searching led to a very similar looking bug report:

http://bugs.freedesktop.org/show_bug.cgi?id=20115

with a patch attached at comment #50. I'm now at a point where I
probably need to learn how to patch a kernel which I won't get chance to
do today. However, at least it looks like this has been narrowed down to
a problem with KMS. Alternatively, I could be headed in completely the
wrong direction as this stuff is a bit over my head. Let me know if
there's anything else I can try. I'll post any further results.

Twig.



** Bug watch added: freedesktop.org Bugzilla #20115
   https://bugs.freedesktop.org/show_bug.cgi?id=20115

-- 
[i845] karmic fails to initialise display on boot. 2.6.31-3 + drm + Intel 845G
https://bugs.launchpad.net/bugs/399821
You received this bug notification because you are a member of Ubuntu-X,
which is the registrant for xf86-video-intel.