Hey blakkfross,
we didn’t give it a try for quite some time until yesterday.
The problem seams to be a incompatibility between Oculus Rift and “NVIDIA Optimus” and sadly there is probably no way to run Oculus with the dedicated GPU on a notebook, which uses this technology.
I guess the demo in the OculusConfigUtil only works, because it is using the integrated Intel graphics by default. Try right clicking OculusConfigUtil.exe → Run with graphics processor → High-Performance NVIDIA processor. You’ll see, there’s the black screen again.