Black Screen before signon and during shutdoqn

My Windows 10 PC seems to be working OK but I notice that between the Windows 10 splash screen and the user sign on page there's a period of time when the screen simply goes black. The system does get to the sign on page but black screens freak me out a bit and I was wondering if anyone else was seeing this? If so, do you know the cause and how to fix it?

Also when I log off I'm seeing the same thing. With Windows 10 when I shut down there's a brief period when the screen is simply black and I'm now having to rely on the sound of my machine turning off vs. the visual queues that I had under Windows 7. Again, anyone know what is causing this and how to fix it?

Just a quick update...... I posted a similar thread on the Microsoft Community Forum and I got back a reply from a Microsoft Support Engineer who said "We're working on that". I guess I'm not the only one experiencing this issue.

They have been working on that since day one. I am tired of seeing black screens after an update. I like to see what MS is doing to my machine.

Over on the Tom's Hardware Forum it was suggested that this might be a video driver issue and it was suggested that I uninstall the AMD driver and reinstall it. That sounded like a good suggestion but AMD is no longer supporting this card and has not supported this card in some time. When they were supporting it I had issues with one of the more current drivers and had to back level to an earlier drive to make my PC work correctly. Right now I don't have a copy of the driver I have installed and the suggestion of removing the existing driver just fills me up with fear, uncertainty and doubt (aka FUD). I hope that someone out here on this forum finds a solution to this issue that doesn't involve removing the existing driver but If not then perhaps I'll buy a new card that is supported under Windows 10 but for now I'm even going to hold off on that purchase to insure that the manufacturers have time to make their Windows 10 drivers available.

i have the same black screen on startup and on sleep wake up