I also confirm that disabling KMS solves this problem. Tested on Ubuntu 10.04 with kernel 2.6.32-21 on IBM/Lenovo T60 with Mobility Radeon X1300. Login screen is not with the right resolution, but who care if external monitor is working again :-)
-- [RV530] video problem flicker 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
