Paul,

Thanks.  That's one differential diagnostic down.  Next is what graphics driver is being used for your display and what graphics hardware (e.g., Radeon R7 [AMD], NVidia, Intel) is being used?

Issues with video/graphics drivers often trigger issues with sleep.
--

Brian - Windows 10, 64-Bit, Version 21H2, Build 19044  

Science has become just another voice in the room; it has lost its platform.  Now, you simply declare your own truth.

       ~ Dr. Paul A. Offit, in New York Times article, How Anti-Vaccine Sentiment Took Hold in the United States, September 23, 2019