F15b X fail on Thinkpad T410/i915 (_DSM problem?)

[Bryn M. Reeves]

Hi Folks,

So far the only machine I've had any hw trouble on with f15b is my Thinkpad T410
with Intel i915 graphics (and latest Lenovo fw).

Anaconda ran happily in normal graphics mode as did Firstboot and Plymouth
displays fine during boot but as soon as we get to the end of the boot process X
is clearly unhappy (flashing console cursor and repeated attempts to start). The
only hint is:

[drm:intel_dsm_pci_probe] *ERROR* failed to get supported _DSM functions

Which led me to:

 https://bugzilla.redhat.com/show_bug.cgi?id=698045

And then to:

 https://bugzilla.redhat.com/show_bug.cgi?id=669489

Which mentions a still-under-discussion patch. I tried a later rawhide kernel
from koji (did not check if it included anything, was just a quick punt before
heading home..) - 2.6.39-0.rc5.git5.0.fc16 - but no joy there either.

Truth be told I'm not at all sure where the problem is - this is a long way from
the parts of the system that I know well.

Was wondering how widespread this was, and whether anyone knew more about the
problem than me? I thought a fair few Fedora folks had these machines? Anyway
any assistance greatly appreciated.

Cheers,
Bryn.