After reading the URL I told about in my comment #4. I read about KMS and I gave disabling KMS a try... and it fixed the symptoms.
radeon.modeset=0 I diff'ed output of dmesg between the running kernel with KMS and without KMS. I removed useless lines. It's attached as dmesg-KMS.diff -- 2.6.32-16.25 video corruption on radeon https://bugs.launchpad.net/bugs/538119 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
