I am using the 3d resolutions, but instead of 3dtv play active it says HD Bluray-only mode, with a link to buy 3dtv play.
Alright, I will try messing around with hot plugging my monitor and display to see if that changes anything.
3D 3DTV Play will only activate for free if a 3D Vision certified emitter is detected.
https://forums.geforce.com/default/topic/541897/i-have-a-benq-xl2420tx-3dvision-2-monitor-and-an-lg-lg47lm6700-3dtv-why-is-3dtv-play-not-available-/