The patch seem indeed confirm the reported lockups with M6, M7 and radeon 7000 so far. David will probably do a new stable release of the radeon driver including it. I recommend that Ubuntu updates dapper and edgy drivers with that fix and close this bug.
-- system freeze when using ati radeon 7000 with xorg "ati" driver https://launchpad.net/bugs/16873 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs