as described in the freedesktop bug on my side it works with UMS ("radeon.modeset=0" boot command, I think "nomodeset" has been deprecated). Although I use the xorg-edgers PPA drivers, not the official Lucid ones. Give it a shot.
This bug is clearly about radeon and just provides a fix for radeon KMS, so if there is a similar problem for nVidia cards please file a new bug. Also I see that there hasn't been filed a bug on freedesktop.org for the nouveau driver lately. Please file there first.
@thehighhat:
as described in the freedesktop bug on my side it works with UMS ("radeon.modeset=0" boot command, I think "nomodeset" has been deprecated). Although I use the xorg-edgers PPA drivers, not the official Lucid ones. Give it a shot.
This bug is clearly about radeon and just provides a fix for radeon KMS, so if there is a similar problem for nVidia cards please file a new bug. Also I see that there hasn't been filed a bug on freedesktop.org for the nouveau driver lately. Please file there first.