How to fix QAudioOutput on Xubuntu?



  • I bring my working program from Window Vista, Everthing is working correctly. Phonon::VideoWidget is working currectly.
    But QAudioIput/QAudioOutput do not work and I've got this warning by running it from Qt Creator:

    WARNING: Phonon needs QCoreApplication::applicationName to be set to export audio output names through the DBUS interface
    Qt Application(11061)/phonon (KDE plugin): Can not create backend object from factory for "GStreamer" , "phonon_gstreamer" :
    "Could not find plugin 'GStreamer' for application 'Qt Application'"
    Qt Application(11061)/phonon (KDE plugin): QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name org.kde.kded was not provided by any .service files")
    Qt Application(11061)/phonon (KDE plugin): QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name org.kde.kded was not provided by any .service files")



  • Make sure you have the "phonon-backend-gstreamer":http://packages.ubuntu.com/phonon-backend-gstreamer package installed, it includes the GStreamer Phonon backend plugin.


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