Couple addendums:
1) Using the DisplayPort output on the 290
2) No other monitors attached (there's a DVI cable attached to the card but it's not hooked to anything, other monitor died on me)
3) Latest stable and optional drivers both haven't helped.
I have an R9 290 and just recently got a 144Hz monitor for the first time. It supports FreeSync, which I of course turned on. But I noticed some odd behavior:
1) After coming out of a game or even a benchmark (like, say, Furmark) which was running well above 60 fps, the monitor reverts to a...