After discussion with Charles Kerr, I'm unmarking this duplicate. Bug 1398888 cites <https://wiki.ubuntu.com/SystemComponents#Root_Item>, which doesn't mention sound volume at all, so I don't see how it can be related.
After discussion with Charles Kerr, I'm unmarking this duplicate. Bug 1398888 cites <https:/ /wiki.ubuntu. com/SystemCompo nents#Root_ Item>, which doesn't mention sound volume at all, so I don't see how it can be related.