Comment # 8 on bug 58840 from almos

Now I tested things again, and I only see rendering errors with neverball.

I don't know if it is expected, but some games completely slow down to a few
fps with msaa enabled (etqw, nexuiz), while others slow down only when lots of
geometry is seen (sauerbraten). I still can't install the msaa-capable
r600_dri.so, because of the kde-window-manager slowdown bug discussed at bug
55998, so I used the __GL_FSAA_MODE=4 env var for the tests.