This post seem fix issue on my box : http://humani.st/ubuntu-nvidia-compiz-black-window-bug-fix/
-- Compiz eventually begins showing completely black windows https://bugs.launchpad.net/bugs/239235 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