I'm running it on a gaming laptop that i use almost exclusively for VR, i'll check if it's in some kind of performance mode. I also noticed when i run it in steamVR mode it mentions a similar kind of error message about graphics cards. I'll take a closer look when I can and post more info.
It's the Lenovo Legion Y520 GTX 1060, it looks like this is an issue of display adapters, I see both the integrated CPU Graphics processor and the GPU. I tried following the comments here, but no luck... https://www.reddit.com/r/oculus/comments/6b5g0a/
Alright! It turns out there's a similar setting in Windows 10 that fixed the problem for me! https://www.howtogeek.com/351522/how-to-choose-which-gpu-a-game-uses-on-windows-10/