Thanks for the output so far. According to your lspci output, ATI claims to officially support your card.
So what do we have: X works with the fglrx driver, but doesn't do accelerated 3D, and restricted-manager does not show it as 'in use'. Correct? This would happen if the fglrx kernel module is not loaded. Please confirm that lsmod | grep fglrx does not output anything. What do the following commands show? dpkg -l 'linux-restricted-modules*' sudo modprobe fglrx Thanks! ** Changed in: restricted-manager (Ubuntu) Status: Unconfirmed => Needs Info -- ATI radeon X1550 driver doesn't work under amd64. Mesa used as fallback https://launchpad.net/bugs/93861 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs