Hello, I have this 4K Android TV mentioned in title. For a long time I was using Plex for watching movies stored in my PC. But my CPU couldn't handle 4K movies, only 1080p was watchable. So for 4K content I used a USB plugged to the back of the TV.

Now I decided to try something new, I installed Kodi. And for my suprise 4K movie did not lag, when I played it over LAN (cable). It was working great.

Then I noticed in Settings/System/Display that the resolution is greyed out and set to 1920x1080p.

So my question is, is there any way to change the resolution? Or is it only the GUI resolution and the movies are played in 4K as in original movie file?

Thanks for help.