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

[Ralf Mardorf]

On Sat, 7 Jul 2018 13:03:51 +0000, Dale Powell wrote:
>Is it strange that I seem to have both jackd and jackd2 installed

Don't confuse the virtual "jackd" package with "jackd1", see	
https://packages.ubuntu.com/bionic/jackd.

QjackCtl for example does depend on the virtual package "jackd".
QjackCtl neither depends on "jackd1", nor on "jackd2" directly, see
https://packages.ubuntu.com/bionic/qjackctl , so it's possible to use
either "jackd1" or "jackd2", but only one, "jackd1" or "jackd2" could be
installed, not both at the same time. The package "jackd" is just a
substitute, again, "jackd" is _not_ "jackd1".

-- 
pacman -Q linux{,-rt{,-securityink,-cornflower,-pussytoes}}|cut -d\  -f2
4.17.4-1
4.16.15_rt7-1
4.16.12_rt5-1
4.16.8_rt3-1
4.14.34_rt27-1