I don't know if this is relevant but I installed Kubuntu Alpha 5 fresh and this worked fine. When I went to dist-upgrade it wanted to install mesa-utils as a dependency of compiz-wrapper, which coincides with the time I started having this problem before.
-- glxinfo crashed with SIGSEGV in __libc_start_main() https://bugs.launchpad.net/bugs/256021 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