I am currently able to start a game with Play on Linux but it always displays the game full screen on my second monitor.
Is there a way to configure Play on Linux or wine to specify which monitor to display on?
Dual (or multiple) monitors can be referred to through a modified DISPLAY environment variable.
Usually, it's set to :0, but the individual screens can be referred to by their own numbers, like :0.0 and :0.1 for a dual monitor setup.
As a disclaimer, I've tinkered with this in the past, but my dual monitor system is down at the moment so I can't empirically test it to make sure. Give it try though.
This should restrict the output to a single screen. Hmmm, I have a nagging thought that it refers to the multiple desktops available with many desktop environments. Desktop 1,2,3,4 and such.
This might not work. (There, I said it...)
I just tried this on my single monitor laptop... :0.0 displays on the current screen, current desktop.. while :0.1 returns "cannot connect" ... and did NOT display anything on any screen or desktop. This shows promise! Try it!