1. In the Windows 10 advance display settings, it would show the UHD signal (3840 x 2160) with 30Hz refresh rate and pixel depth and HDR, according to what ever was selected in the Display Settings of AMD's Adrenalin 2020 software. Checking the List All Modes would list all possible combinations supported by the Display including 3840 x 2160 True Color (32 bit), 60Hz as option. Or the next tab which is Monitor lets you select only the refresh rate. Pressing Ok or Apply after few seconds of blank screens and some flicker will return a screen which you think that everything is working. It will also list the refresh rate as 60Hz. But checking info at the TV end will show that isn't the case. If you close the Windows 10 Display Settings box and re-open it , as many have narrated it will revert to 30Hz.