If you have any kind of problem with the Principal and Secondary monitor in Windows 10 try this:
- Any time you press Windows + P it will switch between one of the options below.
- If you try to press 1 time and wait , even if you do not see your screen, it will change for the next option
- Repeat this as many times as you need until the option selected became "PC Screen Only" and voila. The Black Screen will disapear.