http://gambaswiki.org/bugtracker/edit?object=BUG.1014&from=L21haW4-
Comment #7 by Antonio OREFICE: I never experienced a crash, it is just that the answer to GetAll() is an empty array and i suspect some mpris clients like the kde plasmoid needs that to validate the player. Anyway, there were some errors in the previous example, so i uploaded another here. http://wpage.unina.it/aorefice/sharevari/mpris.tar.gz I tried it with the last gambas revision and set DBus.Debug = True, but i'm experiencing the very same results. Here is what happens: Start the application, plasma already running: ------------------------------------------------------------- gb.dbus: start watching connection gb.dbus: add match: type='method_call',path='/',destination=':1.2385' gb.dbus: add match: type='method_call',path='/org',destination=':1.2385' gb.dbus: add match: type='method_call',path='/org/mpris',destination=':1.2385' gb.dbus: add match: type='method_call',path='/org/mpris/MediaPlayer2',destination=':1.2385' gb.dbus: warning: unhandled message: signal sender=org.freedesktop.DBus -> dest=:1.2385 serial=2 path=/org/freedes ktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired string ":1.2385" gb.dbus: warning: unhandled message: signal sender=org.freedesktop.DBus -> dest=:1.2385 serial=3 path=/org/freedes ktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired string "org.mpris.MediaPlayer2.xt7" gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties Get gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties Get gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties GetAll gb.dbus: GetAll("org.mpris.MediaPlayer2"): ["CanQuit": True, "CanRaise": True, "Identity": xt7-player, "DesktopEnt ry": xt7-player, "HasTrackList": True, "SupportedMimeTypes": (String[] 0x561a9f6bcce8), "SupportedUriSchemes": (St ring[] 0x561a9f6a69e8)] gb.dbus: error: org.freedesktop.Properties.GetAll: Not enough arguments DBusObject.GetAllProperties.539 DBusObject .DBusObserver_Message.612 gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties GetAll gb.dbus: GetAll("org.mpris.MediaPlayer2.Player"): ["Rate": 0, "Volume": 10, "CanPlay": False, "CanSeek": False, "S huffle": True, "CanPause": False, "Position": 0, "CanGoNext": False, "CanControl": False, "LoopStatus": Playlist, "MaximumRate": 0, "MinimumRate": 0, "CanGoPrevious": False, "PlaybackStatus": Playing] gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties Get gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties Get gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties Get gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties Get ################################## Then i restart plasmashell.############ In the plasmashell logs i read: [ 1.715][WW][kde.dataengine.mpris][unknown] "org.mpris.MediaPlayer2.xt7" does not implement org.freedesktop.DBus.Properties correctly [ 1.715][WW][kde.dataengine.mpris][unknown] Failed to find working MPRIS2 interface for "org.mpris.MediaPlayer2.xt7" ########################################################################## Back to the gambas logs: ------------------------------------------------------------------ gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties GetAll gb.dbus: GetAll("org.mpris.MediaPlayer2"): ["CanQuit": True, "CanRaise": True, "Identity": xt7-player, "DesktopEntry": xt 7-player, "HasTrackList": True, "SupportedMimeTypes": (String[] 0x55f5ad11eb78), "SupportedUriSchemes": (String[] 0x55f5a d11eb28)] gb.dbus: error: org.freedesktop.Properties.GetAll: Not enough arguments DBusObject.GetAllProperties.539 DBusObject.DBusOb server_Message.612 gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties GetAll gb.dbus: GetAll("org.mpris.MediaPlayer2.Player"): ["Rate": 0, "Volume": 10, "CanPlay": False, "CanSeek": False, "Shuffle" : True, "CanPause": False, "Position": 0, "CanGoNext": False, "CanControl": False, "LoopStatus": Playlist, "MaximumRate": 0, "MinimumRate": 0, "CanGoPrevious": False, "PlaybackStatus": Playing] If i query now via qdbusviewer: --------------------------------------------------------------------- gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Introspectable Introspect gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Introspectable Introspect gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Introspectable Introspect gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Introspectable Introspect gb.dbus: void signature gb.dbus: void signature gb.dbus: void signature gb.dbus: void signature gb.dbus: void signature gb.dbus: void signature gb.dbus: void signature gb.dbus: void signature gb.dbus: call: [org.mpris.MediaPlayer2.xt7] org.freedesktop.DBus.Properties GetAll gb.dbus: GetAll(""): [] Still an empty array, even if in the logs now i see: gb.dbus: GetAll("org.mpris.MediaPlayer2.Player"): ["Rate": 0, "Volume": 10, "CanPlay": False, "CanSeek": False, "Shuffle" : True, "CanPause": False, "Position": 0, "CanGoNext": False, "CanControl": False, "LoopStatus": Playlist, "MaximumRate": 0, "MinimumRate": 0, "CanGoPrevious": False, "PlaybackStatus": Playing] ------------------------------------------------------------------------------ The Command Line: Reinvented for Modern Developers Did the resurgence of CLI tooling catch you by surprise? 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