So this is my final analysis: The sound indicator has two parts: there is the part which gets loaded to the panel and displays the icons and menus, and then there is the dbus service which coordinates between the indicator and all the audio players. Both these parts exist in both the gtk2 and gtk3 version of the plugin. However, the gtk2 dbus backend is not normally used. The package does not include a service activation script so it can never get loaded automatically. The gtk2 package depends on the gtk3 package which installs a service activation script to start the gtk3 dbus backend.
In raring this worked fine: the two different dbus backends were interchangable so it did not matter which one was running. However, in saucy, the gtk3 indicator backend has been rewritten and the gtk2 one has not changed, so they are now out of sync. That is why it doesn't work. The changes in the backend are very big - I think it would be difficult to port them over to the gtk2 indicator. The easy alternative is the workaround from comment 27, and a harder but more permanent fix is to bring xfce to gtk3 indicator support and dump the gtk2 one entirely. -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-sound in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1208204 Title: indicator-sound no longer functions with xfce4-indicator-plugin Status in Sound Menu: New Status in “indicator-sound” package in Ubuntu: Triaged Bug description: downgrading to the previous version, indicator- sound_12.10.2daily13.04.12-0ubuntu1_amd64 from Raring allows the sound indicator to function in Saucy. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: indicator-sound 12.10.2+13.10.20130731-0ubuntu1 ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3 Uname: Linux 3.10.0-6-generic x86_64 ApportVersion: 2.12-0ubuntu2 Architecture: amd64 Date: Sun Aug 4 12:20:02 2013 InstallationDate: Installed on 2012-08-01 (367 days ago) InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120801) MarkForUpload: True SourcePackage: indicator-sound UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-sound/+bug/1208204/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp

