I'm using Debian (testing) with jackdbus of jack2.
When I try to start Jack server with my rme ff800 just few times I reach.
But often it just says:
DBus exception: org.jackaudio.Error.Generic: Failed to start server
Using Qjackctl I get:
qjackoutput.txt
When it doesn't work I kill jackdbus, reset bus (ffado-test) and I try again and one or two times over 20 I get jack working.
I cannot say if is a problem of jack or ffado.
A strange behavour of RME device is that led of clock source would be "host" when is jack works with internal clock but some times all clock leds turn off.
Some times when jack works, some times when it doesn't.
Is for that I thing meybe is a porblem with samplerate set...
If you need more outputs say me what you need to reproduce this issue.
Thanks