Maurizio De Cecco, Tweaking JackControl supposedly will solve alsa sound problems if you do a work around; after upgrading UbuStu from Karmic, I've not had time to make this happen on this on the PC I use regularly. Tu tiene que seguir! Keep tweaking JackControl till you have it responding correctly! Kenneth <div class="gmail_quote">On Thu, Jun 24, 2010 at 3:01 AM, Maurizio De Cecco <<a href="mailto:jmax@dececco.name">jmax@dececco.name</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Does any one have problems with portaudio on Ubuntu 10.04 ? My code, using portaudio, stopped working on 10.04, with different results depending on used audio subsystem (assertion failed with alsa, freeze with jack); of course i cannot be sure portaudio is the culprit, it may be very well a bug (memory corruption or other) that was hided in the previous version and that it become visible in the new one ... So, it would helpful to known if anybody else met the same problems or on the contrary everything work well for you. Thanks a lot, Maurizio De Cecco -- Ubuntu-Studio-users mailing list <a href="mailto:Ubuntu-Studio-users@lists.ubuntu.com">Ubuntu-Studio-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users</a> </blockquote></div>