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-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp