https://bugs.freedesktop.org/show_bug.cgi?id=33077

--- Comment #3 from Tobias Jakobi liquid.acid@gmx.net 2011-01-14 12:38:18 PST --- In case that this is with the r600 classic driver: Try using r600g, since it solves a lot of the shadow volume rendering issues that the classic driver has. IIRC some developer stated somewhere (I think a bugreport here on FDO) that it isn't very likely that the shadow problems will get fixed with the classic driver.