Traceback (most recent call last): File "/usr/bin/jack_control", line 399, in <module> main() File "/usr/bin/jack_control", line 158, in main bus = dbus.SessionBus() File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 211, in __new__ mainloop=mainloop) File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 100, in __new__ bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop) File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 122, in __new__ bus = cls._new_for_bus(address_or_type, mainloop=mainloop) dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11

Usage: jack_control [command] [command] ... Commands: exit - exit jack dbus service (stops jack server if currently running) help - print this help text status - check whether jack server is started, return value is 0 if running and 1 otherwise start - start jack server if not currently started stop - stop jack server if currently started sm - switch master to currently selected driver dl - get list of available drivers dg - get currently selected driver ds <driver> - select driver dp - get parameters of currently selected driver dpd <param> - get long description for driver parameter dps <param> <value> - set driver parameter dpr <param> - reset driver parameter to its default value asd <driver> - add slave driver rsd <driver> - remove slave driver il - get list of available internals ip <name> - get parameters of given internal ipd <name> <param> - get long description for internal parameter ips <name> <param> <value> - set internal parameter ipr <name> <param> - reset internal parameter to its default value iload <name> - load internal iunload <name> - unload internal ep - get engine parameters epd <param> - get long description for engine parameter eps <param> <value> - set engine parameter epr <param> - reset engine parameter to its default value