[mizzack]

Nope, but I run it at 100% scaling. I did notice that if the source on the TV is not labeled "PC" then the Mac uses YCbCr 4:2:0 and looks like garbage. Setting the input label to PC must send a different EDID because it seems to use RGB... On my Windows machine I can just override that in the nvidia control panel.

[cpr]

Oh, you run it at the full 4K (3840x2160) resolution? Must have good eyes.

Right, nothing works unless you label the relevant HDMI input "PC".