Solved with Ubuntu 7.10, I installed the ati proprietary driver with aiglx support and enabled manually compiz! Anyway, the problem seems to happen with the unsopported plugin for compiz!
-- Xorg process freezes, uses 100% of CPU. Can be killed by remote terminal. https://bugs.launchpad.net/bugs/51991 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs