Comment # 4 on bug 77533 from glphvgacs

(In reply to comment #3)
> (In reply to comment #1)
> > Please attach the corresponding Xorg.0.log and output of glxinfo.
> > 
> > It's hard to believe that commit causing the problem; it shouldn't make any
> > functional difference.
> 
> true. that's the "last working" commit. a commit after that breaks things.
> ok, i'm gonna try with the very next commit.

title was wrong. so this is the bad commit:

71254732db12c8813c002425b5c1b7c31bf56f65