In Mavericks, when I'm running a full screen game, the second screen can't show desktop (or browser, or anything else.) My understanding is that Mavericks sets the second screen in a different Space so both can be used. Am I doing something wrong or is that a wrong understanding?


I believe Steam uses its own full-screen mechanism independent of the system's full-screen option. Since it's not the typical full-screen provided by OS X, the multiple spaces feature doesn't work here.

  • Thanks Jonjesbuzz! Does this mean similar for other full-screen games? It's not just with Steam but just about any other game as well--Guild Wars 2, etc. Does that mean they all override Spaces? – Jim Lawson Jan 13 '14 at 4:03
  • Yep, if you can't switch Spaces or it blacks out your second monitor, Spaces has been overridden. Apple's Spaces implementation (for multiple monitors) is more for apps than games. – Jonathan J. Jan 14 '14 at 14:29
  • Thanks! And ARGH! That was for me a big part of getting two monitors! Danke! – Jim Lawson Jan 15 '14 at 15:42

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