I am confused. Those messages "unknown PCM default" / "unknown PC Juli"... This looks like an alsa problem, i.e., at a lower level than jack or pulseaudio.
I would try disabling .asoundrc files [1]. There might be two of them: /etc/asound.conf (probably not existent, but just in case) ~/.asoundrc The second one, from your report: # ALSA library configuration file # Include settings that are under the control of asoundconf(1). # (To disable these settings, comment out this line.) </home/matthias/.asoundrc.asoundconf> So, what happens if you comment out the last line? (And then reboot, or restart the user session) [1] http://www.alsa-project.org/main/index.php/Asoundrc -- Ubuntu-Studio-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
