(In reply to Christian Zigotzky from comment #17)
> Please note: This is a bug report from an enduser. Endusers aren't able to
> git bisect. They use the distributions for their daily work. I don't have
> these graphics cards so I can't bisect it ether.

If the end user can't build kernels, then the distribution should coordinate
with the end user to provide pre-built kernels at appropriate revisions and do
the (effective) bisect that way.

(And if the end user can build kernels, then they can certainly bisect.)