Cirrus Logic Audio Card with JACK

Hi All

I am now using JACK with Cirrus logic audio card on RPI2. When I start qjackctl, there is an error that cannot find capture device. I exactly followed the user manual to setup RPI2. How can I fixed it problem. Thank you.

clem57 over 9 years ago

Looking at QjackCtl - JACK Audio Connection Tookit - Qt GUI Interface , I would check the requirements and install first. If all appears correct, then use the support to send a detailed explanation and codes seen. Good luck.
Clem
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librears over 9 years ago

Are there some news? I also try to use JACK on the rpi2.

I installed jackd2 (sudo apt-get install) and typed 'sudo jackd -d alsa hw:sndrpiwsp'. This is what I got:

jackdmp 1.9.10
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2014 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
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Failed to connect to session bus for device reservation Unable to autolaunch a dbus-daemon without a $DISPLAY for X11

Audio device hw:0 cannot be acquired...
Cannot initialize driver
JackServer::Open failed with -1
Failed to open server

There was a discussion about this for the B+ Cirrus Audio, B+, and Jack?? but it seems not to work on the rpi2.

Is there someone successfully running jack on the rpi2?
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librears over 9 years ago in reply to librears

Jack works now. I found the solution on: https://journeytounknownsoundscapes.blogspot.de/2015/05/a-new-looper-in-town-raspberry-pi-with.html

Before starting Jack execute in your terminal:
export DISPLAY=:0
export dbus-launch | grep ADDRESS
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