I got the same thing with ET: Quake Wars on Xubuntu 8.04. It seems to be related on other windows stealing focus from fullscreen app. In my case this was fixed by disabling popup notifications from sonata.
-- Compiz causes OpenGL fullscreen games to eventually go windowed. https://bugs.launchpad.net/bugs/157759 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs