When launching Jack via Cadence [1] or likely any other method, Jack isn't
running with real time priority, however if I swap to the kernel from
Kernal:Stable (or use tumbleweed) it works as expected. For the audio recording
/ video work i'm doing having real time is the difference between working and
broken. 

I'm creating this bug as documentation as much as anything else i'm happy to
keep running a kernel from Kernel:Stable


simon@tek-master ~ >  cat /etc/security/limits.d/99-audio.conf
@audio   -  rtprio     99
@audio   -  memlock    unlimited


1. https://build.opensuse.org/package/show/home:simotek:multimedia/Cadence