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

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Subject: [linux-audio-user] JACK - how to connect to nforce2 spdif ?
From: Ruben Jenster (ruben_AT_hotheads.de)
Date: Mon Sep 20 2004 - 17:20:51 EEST

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 

-- 
Wi....s is like a frozen turd in winter.
You can't excactly see what it is, 
but when you take it home to check it up 
its malodor blurts out it's true nature.

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