I do not see this problem on current 12.04 pre-release. It seems it had been fixed somewhere on the way within newer kernel/mesa/xorg/compiz versions. I suspect it was related to some animation plugin within compiz.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/781521 Title: compiz freezes randomly when new window is being created To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-core/+bug/781521/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs