https://bugs.freedesktop.org/show_bug.cgi?id=37289
--- Comment #12 from gottfried.haider@gmail.com 2011-05-17 13:32:22 PDT --- I can't rule out that they do something but I am still seeing it.
It seems to be rather connected to certain geometries/textures than a global thing (at least now) - for example there is a position in the map where the weapon flickers, making a texture beneath visible.
Uploading the last video of the day..