More investigation found that indeed it is beatbox's issue. Here is what beatbox is sending for a PropertyChanged signal on org.freedesktop.Properties interface
signal sender=:1.225 -> dest=org.mpris.MediaPlayer2.beatbox serial=41 path=/org/mpris/MediaPlayer2; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged string "org.mpris.MediaPlayer2.Player" array [ dict entry( string "Metadata" variant string "Playing" ) ] array [ ] Here is what Banshee sends signal sender=:1.209 -> dest=(null destination) serial=301 path=/org/mpris/MediaPlayer2; interface=org.freedesktop.DBus.Properties; member=PropertiesChanged string "org.mpris.MediaPlayer2.Player" array [ dict entry( string "Metadata" variant array [ dict entry( string "mpris:trackid" variant string "/org/bansheeproject/Banshee/Track/73459" ) dict entry( string "mpris:length" variant int64 636661000 ) dict entry( string "xesam:url" variant string "file:///media/ronoc_portable/music_library/Sonnamble/Blindlight/sonnamble-blindlight.mp3" ) dict entry( string "xesam:title" variant string "Blindlight" ) dict entry( string "xesam:album" variant string "Blindlight" ) dict entry( string "xesam:artist" variant array [ string "Sonnamble" ] ) dict entry( string "xesam:albumArtist" variant array [ string "Sonnamble" ] ) dict entry( string "mpris:artUrl" variant string "file:///home/ronoc/.cache/media-art/album-49bfb2c52cb0cd46b9faaf2b3ec6ad06.jpg" ) ] ) ] array [ ] The signature is correct on d-feet but the construction of the variant of what it is actually sending is all wrong. ** Also affects: beatbox Importance: Undecided Status: New ** Changed in: beatbox Status: New => Confirmed ** Changed in: indicator-sound (Ubuntu) Status: In Progress => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/809154 Title: indicator-sound-service crashed with SIGABRT in raise() To manage notifications about this bug go to: https://bugs.launchpad.net/beatbox/+bug/809154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs