Android TV X90c problem with Windows 10

[kaka1984]

hello

so i have a Bravia android tv model x90c , when i connect my PC via HDMI to play 4k games the desktop resolution defaults to 1080p no matter what i do i couldn't make it to 4k , when i reinstalled windows8.1 i it was simply 2 clicks away and easy to do 

also when i turn on HDMI enhanced signal to display 4:4:4 chroma/10bit color depth/ 4k 60fps the screen goes black even if i turn on 4:4:4 color depth from Nvidia CP 

[xx4L0Mxx]

Hi mate. I assume you are using a 9 series Nvidia card?

What HDMI lead are you using?

Have you read through this post? :

https://community.sony.co.uk/t5/televisions/bravia-49x8005c-4k-60fps/td-p/2070767