Hi, using "grep -v" I got the following output: method call time=1487586215.471926 sender=:1.2037 -> destination=:1.5 serial=3 path=/org/jackaudio/Controller; interface=org.freedesktop.DBus.Introspectable; member=Introspect method return time=1487586215.472072 sender=:1.5 -> destination=:1.2037 serial=4923 reply_serial=3 string "<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN" "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd"> <node name="/org/jackaudio/Controller"> <interface name="org.freedesktop.DBus.Introspectable"> <method name="Introspect"> <arg name="xml_data" type="s" direction="out" /> </method> </interface> <interface name="org.jackaudio.JackControl"> <method name="IsStarted"> <arg name="started" type="b" direction="out" /> </method> <method name="StartServer"> </method> <method name="StopServer"> </method> <method name="SwitchMaster"> </method> <method name="GetLoad"> <arg name="load" type="d" direction="out" /> </method> <method name="GetXruns"> <arg name="xruns_count" type="u" direction="out" /> </method> <method name="GetSampleRate"> <arg name="sample_rate" type="u" direction="out" /> </method> <method name="GetLatency"> <arg name="latency_ms" type="d" direction="out" /> </method> <method name="GetBufferSize"> <arg name="buffer_size_frames" type="u" direction="out" /> </method> <method name="SetBufferSize"> <arg name="buffer_size_frames" type="u" direction="in" /> </method> <method name="IsRealtime"> <arg name="realtime" type="b" direction="out" /> </method> <method name="ResetXruns"> </method> <method name="LoadInternal"> <arg name="internal" type="s" direction="in" /> </method> <method name="UnloadInternal"> <arg name="internal" type="s" direction="in" /> </method> <method name="AddSlaveDriver"> <arg name="driver_name" type="s" direction="in" /> </method> <method name="RemoveSlaveDriver"> <arg name="driver_name" type="s" direction="in" /> </method> <signal name="ServerStarted"> </signal> <signal name="ServerStopped"> </signal> </interface> <interface name="org.jackaudio.Configure"> <method name="ReadContainer"> <arg name="parent" type="as" direction="in" /> <arg name="leaf" type="b" direction="out" /> <arg name="children" type="as" direction="out" /> </method> <method name="GetParametersInfo"> <arg name="parent" type="as" direction="in" /> <arg name="parameter_info_array" type="a(ysss)" direction="out" /> </method> <method name="GetParameterInfo"> <arg name="parameter" type="as" direction="in" /> <arg name="parameter_info" type="(ysss)" direction="out" /> </method> <method name="GetParameterConstraint"> <arg name="parameter" type="as" direction="in" /> <arg name="is_range" type="b" direction="out" /> <arg name="is_strict" type="b" direction="out" /> <arg name="is_fake_value" type="b" direction="out" /> <arg name="values" type="a(vs)" direction="out" /> </method> <method name="GetParameterValue"> <arg name="parameter" type="as" direction="in" /> <arg name="is_set" type="b" direction="out" /> <arg name="default" type="v" direction="out" /> <arg name="value" type="v" direction="out" /> </method> <method name="SetParameterValue"> <arg name="parameter" type="as" direction="in" /> <arg name="value" type="v" direction="in" /> </method> <method name="ResetParameterValue"> <arg name="parameter" type="as" direction="in" /> </method> </interface> <interface name="org.jackaudio.JackPatchbay"> <method name="GetAllPorts"> <arg name="ports_list" type="as" direction="out" /> </method> <method name="GetGraph"> <arg name="known_graph_version" type="t" direction="in" /> <arg name="current_graph_version" type="t" direction="out" /> <arg name="clients_and_ports" type="a(tsa(tsuu))" direction="out" /> <arg name="connections" type="a(tstststst)" direction="out" /> </method> <method name="ConnectPortsByName"> <arg name="client1_name" type="s" direction="in" /> <arg name="port1_name" type="s" direction="in" /> <arg name="client2_name" type="s" direction="in" /> <arg name="port2_name" type="s" direction="in" /> </method> <method name="ConnectPortsByID"> <arg name="port1_id" type="t" direction="in" /> <arg name="port2_id" type="t" direction="in" /> </method> <method name="DisconnectPortsByName"> <arg name="client1_name" type="s" direction="in" /> <arg name="port1_name" type="s" direction="in" /> <arg name="client2_name" type="s" direction="in" /> <arg name="port2_name" type="s" direction="in" /> </method> <method name="DisconnectPortsByID"> <arg name="port1_id" type="t" direction="in" /> <arg name="port2_id" type="t" direction="in" /> </method> <method name="DisconnectPortsByConnectionID"> <arg name="connection_id" type="t" direction="in" /> </method> <method name="GetClientPID"> <arg name="client_id" type="t" direction="in" /> <arg name="process_id" type="x" direction="out" /> </method> <signal name="GraphChanged"> <arg name="new_graph_version" type="t" /> </signal> <signal name="ClientAppeared"> <arg name="new_graph_version" type="t" /> <arg name="client_id" type="t" /> <arg name="client_name" type="s" /> </signal> <signal name="ClientDisappeared"> <arg name="new_graph_version" type="t" /> <arg name="client_id" type="t" /> <arg name="client_name" type="s" /> </signal> <signal name="PortAppeared"> <arg name="new_graph_version" type="t" /> <arg name="client_id" type="t" /> <arg name="client_name" type="s" /> <arg name="port_id" type="t" /> <arg name="port_name" type="s" /> <arg name="port_flags" type="u" /> <arg name="port_type" type="u" /> </signal> <signal name="PortDisappeared"> <arg name="new_graph_version" type="t" /> <arg name="client_id" type="t" /> <arg name="client_name" type="s" /> <arg name="port_id" type="t" /> <arg name="port_name" type="s" /> </signal> <signal name="PortsConnected"> <arg name="new_graph_version" type="t" /> <arg name="client1_id" type="t" /> <arg name="client1_name" type="s" /> <arg name="port1_id" type="t" /> <arg name="port1_name" type="s" /> <arg name="client2_id" type="t" /> <arg name="client2_name" type="s" /> <arg name="port2_id" type="t" /> <arg name="port2_name" type="s" /> <arg name="connection_id" type="t" /> </signal> <signal name="PortsDisconnected"> <arg name="new_graph_version" type="t" /> <arg name="client1_id" type="t" /> <arg name="client1_name" type="s" /> <arg name="port1_id" type="t" /> <arg name="port1_name" type="s" /> <arg name="client2_id" type="t" /> <arg name="client2_name" type="s" /> <arg name="port2_id" type="t" /> <arg name="port2_name" type="s" /> <arg name="connection_id" type="t" /> </signal> <signal name="PortRenamed"> <arg name="new_graph_version" type="t" /> <arg name="port_id" type="t" /> <arg name="client_id" type="t" /> <arg name="client_name" type="s" /> <arg name="port_old_name" type="s" /> <arg name="port_new_name" type="s" /> </signal> </interface> <interface name="org.jackaudio.SessionManager"> <method name="Notify"> <arg name="queue" type="b" direction="in" /> <arg name="target" type="s" direction="in" /> <arg name="type" type="u" direction="in" /> <arg name="path" type="s" direction="in" /> <arg name="result" type="a(sssu)" direction="out" /> </method> <method name="GetUuidForClientName"> <arg name="name" type="s" direction="in" /> <arg name="uuid" type="s" direction="out" /> </method> <method name="GetClientNameByUuid"> <arg name="uuid" type="s" direction="in" /> <arg name="name" type="s" direction="out" /> </method> <method name="ReserveClientName"> <arg name="name" type="s" direction="in" /> <arg name="uuid" type="s" direction="in" /> </method> <method name="HasSessionCallback"> <arg name="client_name" type="s" direction="in" /> <arg name="has_session_callback" type="b" direction="out" /> </method> <method name="GetState"> <arg name="type" type="u" direction="out" /> <arg name="target" type="s" direction="out" /> </method> <signal name="StateChanged"> <arg name="type" type="u" /> <arg name="target" type="s" /> </signal> </interface> <interface name="org.jackaudio.JackTransport"> </interface> </node> " method call time=1487586215.472976 sender=:1.2037 -> destination=:1.5 serial=4 path=/org/jackaudio/Controller; interface=org.jackaudio.JackControl; member=StartServer method call time=1487586215.519314 sender=:1.5 -> destination=org.freedesktop.DBus serial=4924 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RequestName string "org.freedesktop.ReserveDevice1.Audio0" uint32 4 signal time=1487586215.519333 sender=org.freedesktop.DBus -> destination=(null destination) serial=7256 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameOwnerChanged string "org.freedesktop.ReserveDevice1.Audio0" string "" string ":1.5" signal time=1487586215.519339 sender=org.freedesktop.DBus -> destination=:1.5 serial=6554 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired string "org.freedesktop.ReserveDevice1.Audio0" method return time=1487586215.519343 sender=org.freedesktop.DBus -> destination=:1.5 serial=6555 reply_serial=4924 uint32 1 method call time=1487586215.519491 sender=:1.5 -> destination=org.freedesktop.DBus serial=4925 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=ReleaseName string "org.freedesktop.ReserveDevice1.Audio0" signal time=1487586215.519503 sender=org.freedesktop.DBus -> destination=:1.5 serial=6556 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameLost string "org.freedesktop.ReserveDevice1.Audio0" signal time=1487586215.519508 sender=org.freedesktop.DBus -> destination=(null destination) serial=7257 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameOwnerChanged string "org.freedesktop.ReserveDevice1.Audio0" string ":1.5" string "" method return time=1487586215.519513 sender=org.freedesktop.DBus -> destination=:1.5 serial=6557 reply_serial=4925 uint32 1 error time=1487586215.531332 sender=:1.5 -> destination=:1.2037 error_name=org.jackaudio.Error.Generic reply_serial=4 string "Failed to open server" signal time=1487586215.533919 sender=org.freedesktop.DBus -> destination=:1.2037 serial=5 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameLost string ":1.2037" signal time=1487586215.533933 sender=org.freedesktop.DBus -> destination=(null destination) serial=7258 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameOwnerChanged string ":1.2037" ... If there's some unexpected additional output, it might be inserted by some "grep-removed" output. Kind regards Peter Am 20.02.2017 um 09:59 schrieb Martin Kühne via arch-general:
run dbus-monitor in a different terminal window while running `jack_control start` to get the full, graphic details of the dbus exception.
cheers! mar77i