I must report that Robert Hooker's suggestion above made no difference to my situation: compiz will not start even after that command and a reboot.
-- No hardware acceleration on ATI Radeon 3650 HD using 'radeon' driver https://bugs.launchpad.net/bugs/534662 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