Hoooray! According to xorg bugzilla (see 1424 bugreport) this issue was fixed in upcoming xorg 7.2. PLEASE include version 7.2. ASAP. Thank you.
-- Font rendering glitches with radeon, known bug, patch exists https://launchpad.net/bugs/62537 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs