Hello Linuxaudio, I was discussing the subject with las and he mentioned this thread. I also faced the problem, and just: - wrote a mail to {Ubuntustudio-devel, Ubuntu kernel team, JACK devel, abogani} trying to sum up the situation: https://lists.ubuntu.com/archives/ubuntu-studio-devel/2010-December/002881.… - filed a bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/690010 Contributions welcome. Let's hope something good will result... Cheers, -- Ronan Jouchet