I bought myself this board so that I could get 4k output (spec says it is capable of 4k 60p output) and updated to the latest stable LE viz 8.0
When I go to the system settings, I can now choose resolution all the way upto 4096x2160 and also UHD which is 3840x2160. However the refresh rate options allow no more than 60 Hz. My TV is a Sony 4k TV with HDR and supports 60 frames. I tried with 2 different cables both of which claim to be HDMI v2.0 with 4k 60p support. How can I troubleshoot the cuplrit here? Also, any way to check if HDR is working?