How to find out what app is hogging the soundcard

[Philipp Überbacher]

On Thu, 8 Nov 2007 22:20:33 -0200
"Chris Dawson" <xrdawson at gmail.com> wrote:

> You can also use "lsof | grep snd"
> 
> Chris
> 
> On Nov 8, 2007 10:26 AM,  <hollunder at gmx.at> wrote:
> > Does anyone know how I can find out which app is using or hogging
> > the soundcard?
> > It already happens at startup.
> > I can use audacious or mpd but not aqualung or jack.
> >
> > > Aqualung:
> > > Probing JACK driver... JACK server not found
> > > Probing ALSA driver... device busy
> > > Probing OSS driver... device busy
> >
> > > Jack:
> > > the playback device "hw:0" is already in use. Please stop the
> > > application using it and run JACK again
> > > cannot load driver module alsa
> >
> > I use ubuntustudio 7.10 from a fresh install + xfce.
> > It worked previously but I don't know what I did to break it.
> >
> > Help is appreciated
> > regards
> >         Philipp
> >
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> 

Thanks, but neither "lsof | grep snd" nor "fuser /dev/snd/*" show
anything besides the mixer in xfce as well as gnome, and killing the
mixer doesn't help.
I somehow start to think that it might be an alsa problem, like some
part of alsa not freeing the soundcard when an app needs exclusive
access.