I can’t seem to get this working.

Windows 10
Nvidia GTX750 (361.41)
Vizio M43-C1
CAC-1070 FW 7.0e

Any advice?  I have seen people suggest 4:2:0 is required with Vizio, but that is not presented as an option in the Nvidia control panel for me (only RGB, 4:4:4, and 4:2:2).  I would like to get this working, but I also don’t want to spend hours banging my head as others seem to have.

My guess is that 4:2:0 is required for Vizio (which would be unfortunate as you can do this over HDMI 1.4 4k@60 Hz) and that the adapter is not advertising that 4:2:0 is supported to the video card so it is not an option that can be selected.