This happens because unity8 doesn't support synchronous notifications in the way that notify-osd does on the desktop. It's not clear yet whether it will ever gain that. Maybe it'll grow a different API that is private to system components.
Until then, it's probably best to just disable the notification in indicator-sound. ** Also affects: indicator-sound Importance: Undecided Status: New ** Changed in: indicator-sound Importance: Undecided => High ** Changed in: indicator-sound Assignee: (unassigned) => Lars Uebernickel (larsu) -- 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/1236292 Title: Using volume buttons on phone triggers spurious popup Status in Sound Menu: New Status in “indicator-sound” package in Ubuntu: Confirmed Bug description: Flashed mako with image #82. Press volume rocker, get a popup with no image and just the text 'indicator-sound'. See screenshot. To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-sound/+bug/1236292/+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