2160p is it possible on a HTPC

As the title states is this possible on a HTPC, I cant get it on my OLED LG EF950v. 1080p works, when my desktop is set to 1080 my TV info correctly repors the TV is in desktop mode and shows 1920×1080@60hz, when I play a movie it jumps into video mode and then shows 1080p@60hz.

Doesnt do this when my desktop resolution is 3840×2160, it just shows 3840×2160@60hz for both desktop and movie playback, this is becoming a problem for me.

Clearly not an issue with KODI but this may start being a problem for all 4k HTPC KODI users if its an issue with 4k specifications.

Any ideas anyone?