[LAD] Failed to connect to session bus for device reservation

[Thomas Brand]

On Tue, February 14, 2017 16:39, Fokke de Jong wrote:
> Hi Guys,
>
>
> I’m trying to set up a minimal audio system (without X11) based on the
> ubuntu mini-iso.
>
> When trying to start jack, i get this dbus error message:
>
>
> ...
> sudo /usr/bin/jackd -p512 -dalsa -r48000 -p64 -n2 -D -Chw:MADIFXtest
> -Phw:MADIFXtest
> jackdmp 1.9.10 Copyright 2001-2005 Paul Davis and others.
> Copyright 2004-2013 Grame.
> jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you
> are welcome to redistribute it under certain conditions; see the file
> COPYING for details
> no message buffer overruns no message buffer overruns no message buffer
> overruns JACK server starting in realtime mode with priority 10
> Failed to connect to session bus for device reservation Unable to
> autolaunch a dbus-daemon without a $DISPLAY for X11
>
> Audio device hw:MADIFXtest cannot be acquired...
> Cannot initialize driver
> JackServer::Open failed with -1
> Failed to open server
> ...
>
>
>
> I’ve seen others mention the error but have not really found a
> solution. I guess part of the problem is that I’m not really sure what
> the error means :-) So if anyone could be so kind to enlighten me?

Hi Fokke,

you might need to compile JACK without support for dbus, there is a
configure option.

Greetings
Thomas