https://bugs.freedesktop.org/show_bug.cgi?id=45760
--- Comment #6 from Michel Dänzer michel@daenzer.net 2012-02-09 01:33:03 PST ---
With start of game the fps is above 30. After hour of game fps down to 10. That may be cured by changing, for example, vertical sync in game settings, but after hour of game fps down to 10 again.
Hmm, sounds like maybe there's some kind of resource leak, and when you change settings, things are reinitialized and it starts afresh...