Comment # 5 on bug 102008 from bartos.petr@gmail.com

So after applying patch to avoid segfault (from
655a32f729a46176c1fc0c1727b33c15c69cad78) I was able to further bisect and
found that error is caused by commit

34e1ccbfbe851ecf4ebbfc86d70da384d176d994

Therefore I have also changed component from radeonsi to i965.

As for rendering, Mike, I am using plasma where I must disable kwin compositor
for full screen apps, else I see also blackscreen (but I did not notice, that
is is related to 32 or 64bit apps)