I have a 6800 XT, and a C32HG70 Samsung monitor. When I activate Freesync I get some minor flickering every couple of seconds, I suspect the monitor is going in and out of sync whenever those flickers occur. I can see this, because when I go to my monitors FPS tracker, I see my frames go from a stable 90 (my framerate target set with afterburner) to spikes of over 100 periodically. I dont know why this is, other games work absolutely fine with freesync.
What I have already tried:
Different settings in the AMD software
I deactivated Afterburner
I switched from fullscreen to borderless, to windowed in the game.
Other ideas?