I've had this issue in the past, and am planning another Ryzen build so I'm wondering how you're suppose to go about doing this.
Ryzen 2700x, GPU is a 2080 Ti.
The issue I had was bios was viewable. Windows installed, but then as soon as I booted into windows, loss of signal occurred to the monitor. Restart, bios viewable, windows starts to boot, loss of signal occurred.
I'm assuming this was due to driver issues. Monitor was hooked up to the GPU. With no on board graphics with the 2700X, I have to rely on the GPU to display, but if the drivers need updated before I can get into windows and see my screen, how would I ever get the proper drivers installed?
I assume I'm missing something easy, or am doing something wrong.