So I figured out how to get g-sync working. "Keep window on top" has to be checked as well as "Use fullscreen". Once these are checked, dolphin kicks into g-sync upon starting a game. The only issue is that upon hitting escape to exit the game, the pop up asking if you want to end emulation is not displayed. If you hit return or the space bar it will exit emulation. And if I select "Hide mouse cursor" I sometimes have to ctrl-alt-del and then escape after ending emulation to get out of the resulting black screen. This is using windows 8.1 with a GTX 770 and driver version 334.89.
For those trying to get shadowplay working, enabling "Keep window on top" may do the trick.
For those trying to get shadowplay working, enabling "Keep window on top" may do the trick.
