Soundcard is yamaha ymfpci. Using Alsa9 and Gentoo.
Can post more details if required.
betty.net[~] $ jackd -d alsa
Copyright 2001-2003 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support
loading driver ..
creating alsa driver ...
You appear to be using the ALSA software "plug" layer,
a result of using the "default" ALSA device. This is less
efficient than it could be. Consider using a
to define a hardware audio device rather than using the
ALSA: cannot set number of periods to 2 for capture
ALSA: cannot configure capture channel
engine driver not set; cannot start
cannot start main JACK thread
jack main caught signal 15
received signal 11 during shutdown (ignored)