I recently purchased a 2016 Vizio M-series 60" 4K TV (M60-D1) for use as a PC monitor (mainly for gaming). I have had no problem getting 120fHz @ 1080p with v-sync on, but for some reason I can't seem to get 4K @ 60Hz unless I disable v-sync. This leads me to believe that the pass-through is capped at 30Hz @ 4K even though I have adjusted the refresh rate to 60Hz via the "display adapter properties" monitor tab.
Please help!
My Rig (Obelix):
i5-6500
Zotac GTX 1080 Amp Edition
32GB G.Skill Ripjaws V-Series @ 3200MHz
Gigabyte GA-Z270P-D3 Mobo
Silicon Power 120GB SSD
2x 2TB WD-Red 3.5" in Raid-0