[PD] jack on through console?

[João Pais]

> dbus-send --system /org/rncbc/qjackctl org.rncbc.qjackctl.start
>
> dbus-send --system /org/rncbc/qjackctl org.rncbc.qjackctl.stop
>
> is equivalent to pressing qjackctl's start&stop buttons.

hmm, this would be what I want, but it didn't work here (jaunty). any  
permissions missing?