adding "options radeon modeset=0" to /etc/modprobe.d/radeon-kms.conf solved the problem for me. My external monitor is no more wavy. ATI HD2400 adapter, VGA with kernel 2.6.32-21-generic x86_64
-- [RV530] Video problem: External monitor wavy, unreadable. ati radeon [Needs pll quirk] https://bugs.launchpad.net/bugs/537640 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
