[linux-audio-user] JACK - how to connect to nforce2 spdif ?

[Florian Schmidt]

On Mon, 20 Sep 2004 14:20:51 +0000
Ruben Jenster <ruben at hotheads.de> wrote:

> Hi,
> 
>  I want to use the JACK soundserver. I'm able to connect to the normal
> analog output but not to spdif.
> 
> I use the snd-intel8x0 driver for my onboard nforce2 soundchip.
> 
> > ash-2.05b# cat  /proc/asound/devices
> >   1:       : sequencer
> >   0: [0- 0]: ctl
> >  18: [0- 2]: digital audio playback
> >  25: [0- 1]: digital audio capture
> >  16: [0- 0]: digital audio playback
> >  24: [0- 0]: digital audio capture
> >  33:       : timer
> > bash-2.05b#
> 
> Using the alsa output plugin in xmms I can choose hw:0,2 then the
> sound comes out through spdif, but I don't know how to do this with
> JACK. I tried qjackctl (grafical controller for JACK and ALSA) and
> qjackconnect(grafical patchbay) and via console by typing 'jackd -d
> alsa -d hw:0,2' (same with hw:1 and hw:2) but this doesn't work,
> neither as user nor as root.
> 
>  via console I get the following output:
>  > ash-2.05b$ jackd -d alsa -d hw:1 -S
> >
> >  jackd 0.98.1
> >  Copyright 2001-2003 Paul Davis and others.
> >  jackd comes with ABSOLUTELY NO WARRANTY
> >  This is free software, and you are welcome to redistribute it
> >  under certain conditions; see the file COPYING for details
> >
> >  loading driver ..
> >  creating alsa driver ...
> > hw:2|hw:2|1024|2|48000|0|0|nomon|swmeter|-|16bit jackd: pcm.c:690:
> > snd_pcm_nonblock: Assertion `pcm' failed. Abgebrochen
> >  bash-2.05b$
> 
> qjackctl displays following errors:
> > 13:16:14.915 /usr/bin/jackd -R -dalsa -dhw:0,2 -r48000 -p1024 -n2 -S
> > -i2-o2 13:16:14.936 JACK was started with PID=12828 (0x321c).
> > jackd 0.98.1
> > Copyright 2001-2003 Paul Davis and others.
> > jackd comes with ABSOLUTELY NO WARRANTY
> > This is free software, and you are welcome to redistribute it
> > under certain conditions; see the file COPYING for details
> > loading driver ..
> > apparent rate = 48000
> > creating alsa driver ...
> > hw:0,2|hw:0,2|1024|2|48000|2|2|nomon|swmeter|-|
> 
> 16bit
> 
> > ALSA lib pcm_hw.c:1155:(snd_pcm_hw_open) open /dev/snd/pcmC0D2c
> > failed: No
> 
> such file or directory
> 
> > jackd: pcm.c:690: snd_pcm_nonblock: Assertion `pcm' failed.
> > 13:16:14.994 JACK was stopped successfully.
> > 13:16:16.966 Could not connect to JACK server as client.
> 
> Is there some special configuration needed in '/etc/asound.conf'
> Please help me, if it works I want to write a howto in the gentoo user
> forum cause there is to little information about JACK and JACK is
> definitly a great leap forward considering the sound quality.
> 
> Ruben

see my answer to your bugreport

flo