Wanted to update that I found a fix, specifically to edit /usr/share/applications/gnome-sound-panel.desktop and add XFCE to the OnlyShowIn line.
-- 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/1359248 Title: Sound settings no longer works with Gnome Control Center Sound in Xfce Status in “indicator-sound” package in Ubuntu: New Bug description: In Ubuntu 12.04 I was able to install Gnome Control Center and indicator-sound and launch GNOME Control Center's audio options from the "Sound Settings" option in Indicator-Sound, but after upgrading to 14.04 this is no longer possible - it loads GNOME-Control-Center showing only one or two icons, the only workaround being to manually launch "gksu gnome-control-center sound" which is less than ideal. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1359248/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp