On Thu, 11.12.08 00:49, Beinan Li (li.beinan at gmail.com) wrote: > New update: > > I think I was overly optimistic. > The problem came back again. > Right after I detach my USB soundcard, I lost my builtin soundcard again. > This time "simultaneous output" was not checked. > I'm at a loss now. Just about to restart my system. > Any idea is appreciated! Run pulseaudio -vvvv in a terminal to see what is going on. (It might be necessary to run pulseaudio -k first, to stop the running instance) Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4