Thank you people.
Looks like jack_connect, jack_disconnect and jack_control are what I am
looking for.
cheers
Worik
On 16/06/16 18:25, Len Ovens wrote:
On Wed, 15 Jun 2016, Will Godfrey wrote:
You
probably really want to use jackdbus (what qjackctl on UbuntuSTudio
uses by default) so that you can change the system device the jack
server
I don't know about ubuntu, but here on vanilla debian, jackdbus is
quite a
headache for me.
Something (I haven't discovered what) is starting it up, and it
connects to
onboard hdmi, if I then start qjackctl it sees jack running so
doesn't apply
the setting I actually want, which is my KA6. It happens just
infrequently
enough for me to forget and wonder why everything is connected but
I'm getting
no sound :(
Are you sure it is not the other way around? Normally it is jackd that
gets started by some jack app and then qjackctl can no longer start
jackdbus which is pretty normal. Does your version of jack happen to
be from 2014ish? It was buggy and when an app started jackd in
temporay mode it did not exit when the app closed.
qjackctl can only control an instance of jackd it starts itself.
However, I can start jackdbus with jack_control and use qjackcontrol
to stop and then restart with different parameters. If perhaps you are
thinking that you often find "jackdbus auto" running using ps x or
something like that, do try jack_control status
If it says:
--- status
stopped
jackdbus is not the problem.... probably jackd is also running... try
killall -9 jackd and see if qjackctl starts working as you expect.
You either need a working jackd or you can chmod -x /usr/bin/jackd if
you don't want to do that. (I ran with jackd chmod -x for two years
waiting for the repos to catch up with no harm. BTW, jackdbus can do
pretty much anything jackd can using jack_control. Try it in a
terminal with no parameter for a help list as there is no man page :P
--
Len Ovens
www.ovenwerks.net
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