I’m in the process of upgrading my emu box from a NUC5i3 to a NUC8i3. I have it connected to a 4k TV via an AV Receiver. However, even the new NUC runs poorly at 4k when using shaders. What I am trying to do is have Retroarch run at true Fullscreen at 1080p instead. However, the problem is when I do this Retroarch opens like its full screen (no Window chrome around it) but only takes up 1/4 of the screen. I can still see my desktop behind it. It’s like its running at fullscreen 1080p but the display output is staying at 4k.
I didn’t have this issue with the NUC5, I used identical RetroArch settings with it and it behaved as I wanted it to. The NUC5 was running RetroArch 1.5.0 (I think, maybe 1.6.0) and the new one is running 1.7.6. I am using Windows 10 1803 and have the most recent Intel graphics drivers from the Intel website.