I have this bug as well, 11.04 64bit, upgraded from ~9.04 -> {9.10, 10.4, 10.10} -> 11.04, Nvidia GTX580.
With Nvidia drivers 270.41.06 (default shipped) I will try compiz --replace when I get home -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686094 Title: Unity and Compiz do not start (SIGSEGV, Segmentation fault) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs