Launchpad automatically added the link to his comment, but he was referring to the upstream bug report you linked. The proper method to disable it is radeon.modeset=0, I was under the impression "nomodeset" was an i915 specific option. this bug is fixed with linux-image-2.6.31-2 because the default option for radeon KMS is disabled now.
** Changed in: xserver-xorg-video-ati (Ubuntu) Status: New => Fix Released -- [karmic] Modesetting Xorg does not respect 'nomodeset' option https://bugs.launchpad.net/bugs/395316 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