FC13/KDE
I having problems with jackd not starting, because it can't find a backend
Which one do I use pulseaudio or alsa ?
There is no output in /var/log/messages for jackd.
Here is the output of running "jackd"
$ jackd jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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
jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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
usage: jackd [ --no-realtime OR -r ] [ --realtime OR -R [ --realtime-priority OR -P priority ] ] (the two previous arguments are mutually exclusive. The default is --realtime) [ --name OR -n server-name ] [ --no-mlock OR -m ] [ --unlock OR -u ] [ --timeout OR -t client-timeout-in-msecs ] [ --port-max OR -p maximum-number-of-ports] [ --debug-timer OR -D ] [ --no-sanity-checks OR -N ] [ --verbose OR -v ] [ --clocksource OR -c [ c(ycle) | h(pet) | s(ystem) ] [ --replace-registry ] [ --silent OR -s ] [ --version OR -V ] [ --nozombies OR -Z ]
-d backend [ ... backend args ... ] Available backends may include: alsa, dummy, freebob, firewire, net, oss, sun, or portaudio.
jackd -d backend --help to display options for each backend
[mickey@Acer ~]$ jackd -d backend --help jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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
jackd: unknown driver 'backend'
# jackd -d pulseaudio jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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
jackd: unknown driver 'pulseaudio'
[root@Acer mickey]# jackd -d alsa jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn 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
JACK compiled with System V SHM support. loading driver .. creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit control device hw:0 the playback device "hw:0" is already in use. Please stop the application using it and run JACK again
cannot load driver module alsa
There are no other applications using the sound system.