Worked around problem by purging all 'fglrx' packages, then using updatedb/locate to find all files on the filesystem containing the string "fglrx", checking to see which of them were actually owned by packages with:
for filename in $(locate fglrx); do dpkg-query -S $filename; done and renaming out every file that wasn't part of a package (the only two that were were: app-install-data: /usr/share/app-install/desktop/fglrx-driver.desktop x11-common: /usr/share/apport/package-hooks/source_fglrx-installer.py ) With all of those renamed out, X started OK (non-accelerated, using the 'radeon' driver) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/763130 Title: X hangs at startup (segfault in fglrx?) after Natty beta upgrade -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs