Comment 17 for bug 40808

Yes, this is still the issue with up-to-date gutsy with bundled ati driver (1:6.6.193-1ubuntu1) and with the updated/test driver provided by XOrgOnTheEdge (xrandr 1.2 branch: 1:6.7.192-1ubuntu2).

There is one commit from today, that may be related to this issue, but I need to wait for new packages to try it out:
http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-ati.git;a=commitdiff;h=8ae69c496eba701e744cca0605f73242673f7b3f