http://mail-index.netbsd.org/netbsd-bugs/2007/07/21/0001.html

I looked through the sources for azalia.c, azalia.h, and azalia_codec.c and
reviewed some private correspondence from another NetBSD user. I am making time
in my schedule to work on this; however, it's difficult as i am running 3.1
instead of -current, so i don't think i'd be able to test any of the code other
than for syntax.

Also, i wasn't sure if it was an issue with the driver or something with the
motherboard. I would like to start working on these sorts of issues in NetBSD.
In a situation like this, what's the best place to start? What's most likely the
cause of the problem? Please advise.