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

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On Mon, 20 Sep 2004 14:20:51 +0000
Ruben Jenster <ruben@xxxxxxxxxxx> 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


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