I think it should show a message, even if fallbacking to Unity-QT, and in the two cases ( fallback to Gnome-panel or Unity-QT, ask the suer if he wants to show this message next time.)
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in ubuntu. https://bugs.launchpad.net/bugs/703653 Title: Fallback from Unity-GL should use unity-2d if installed -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs