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/ 2 Years ago, thu, may 26, 2022, 7:25:01
I'm on Ubuntu 13.04, using a ZaReason Zini, which as far as I can tell has no audio output other than its hdmi port. I'm trying to get the Clojure library Overtone working, and ran into the problem described here. The underlying problem seems to be that jackd doesn't work:
anand@anand-desktop:~$ jackd -R -d alsa
jackdmp 1.9.10
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2013 Grame.
jackdmp 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
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
Cannot initialize driver
JackServer::Open failed with -1
Failed to open server
Following the blog post and advice others have given for similar problems, I did aplay -l and saw
anand@anand-desktop:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
There seem to be two instances of the same card. Doing jackd -R -d alsa -d hw:0 produces the original error, and any other device number results in
ALSA lib pcm_hw.c:1401:(_snd_pcm_hw_open) Invalid value for card
Unfortunately, that means that the standard fix described in the blog post doesn't work for me. How can I get jackd working?
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