[pulseaudio-discuss] volume-independence on secondary output devices

[Jud Craft]

> The main volume control (e.g. the applet in the system tray or the buttons
> on your keyboard/laptop) will control whatever device is marked as "default"
> or "fallback". If you tweak this, it will work with the appropriate device.

I'm not sure what you mean by "fallback device".  Can you set that on
the Output tab in gnome-sound-properties?  All I know is, changing my
Output device from "Internal Audio" to "USB Audio" means volume
control has no effect anymore.  Sorry to sound so clueless.