Comment # 25 on bug 56405 from Michael Dressel

I have not tried that before.

Now I cherry picked 
0b616b2f5164621e3a63caeb15c6eb1d01bbc55a
4a162f6eba73a8cb2654cd99a2bd12bd468925a6

on top of 
302862defa61b2cee1ae24159aca306f090ca854

The r600_dri.so did compile now.

But now gnome starts in fallback mode
with the new r600_dri.so.

And in this mode I can not test the problem.