[LAU] Ubuntu 18.04 can't stop Jack from qjackctl

[Len Ovens]

On Sat, 7 Jul 2018, Dale Powell wrote:

> If I disable D-Bus Interface and Jack D-Bus Interface in the Misc Preferences I
> _seem_ to be able to stop and start the server. But it's clearly still not
> working right! I can't actually change saved config without quitting and
> re-opening qjackctl. Even then it will something try and start the jack server
> automatically even though the Preference setting is set to not do so. Ontop of
> that no matter if I have dbus enabled I *always* get "/usr/bin/jackdbus auto"
> listed if i ps ax to see what is actually running.
> 
> Has somebody broken Jackd in Ubuntu?

I use it daily and have been for some months now. Seeing jackdbus auto in 
the ps output does not mean jack is active, it just means that jackdbus 
has been started by dbus. Running jack_control status will return 
"stopped" if jackd is not running though.

> 
> Is it strange that I seem to have both jackd and jackd2 installed and to attempt
> to remove either wants to remove different selections of packages? Although this

WHat makes you think you have both jackd and jackd2 installed? apt should 
not allow installing jackd1 without removing jackd2 (and lots of other 
things) jackd2 installs both jackd (version 1.9) and jackdbus (version 
1.9). The problem (feature) with the debian jackd2 install of both jackd 
and jackdbus, is that if jack is not running and the user starts an 
application looking for jack, it will start jackd for them by default. 
then qjackctl will not be able to run jackdbus as normal. things have been 
this way since forever it seems.

--
Len Ovens
www.ovenwerks.net