So I got League of Legends up and running on my linux install (Ubuntu 16.04) but with one glaring issue. I have a dual monitor setup, the second one is a TV, and whatever I do I can't get the game to load on my main monitor. I've tried changing the Compiz settings to prefer my main (smaller) monitor, no luck. I've tried changing the video settings in game by putting it in windowed mode, moving it over to my main monitor. But when I put it back to fullscreen or borderless mode, it snaps back to my TV.
How can I get the game to prefer, and load by default, on my main monitor?