I've found that for some games, the interaction with my window manager is such a headache that it's easier to run them in a non-compositing WM in a TTY. What I'd like to know is whether it's possible to hear audio from both of my TTYs -- this is so if I'm in a call, I can participate whether I'm looking at my standard desktop or my game.
It is the case that the audio from the last selected graphical TTY persists if you switch to another TTY with a terminal, but once you switch to the other graphical TTY, you lose the sound from the one you started in.
I'm using Ubuntu 16.04. My primary TTY runs Unity 7 and the game is running in XFCE4 with compositing disabled.