https://bugzilla.kernel.org/show_bug.cgi?id=204725
--- Comment #48 from Dmitri Seletski (drjoms@gmail.com) --- (In reply to Mike Lothian from comment #47)
It's selected automatically if you set DRM_FBDEV_EMULATION - which is "Enable legacy fbdev support for your modesetting driver" and unset above
That should get your console working
Mike, just to clarify, console is working until AMDGPU driver is loaded.