I would check the options for energy-saveing in the guests control panel first.
Maybe it is as simple as changing "turn monitor off after X minutes ...."
Not sure whether it will help in this case, but it may be worth a try to disable "Bitmap caching" in the RDP's advanced connection setting.
Thanks for the responses, I tried both settings. Unfortunately, no improvement. There was a 10 minute inactivity timeout for the display, I set it to Never. Also tried turning off the bitmap caching.
My issues with the screen going black seems to be solved with some updates to my client PC's video driver. I have dual monitors, and before I solved the issue, I discovered I can "wake up" the black screen by dragging it from one monitor to another. Weird. But I don't the issue anymore, thankfully.
Great that you have found the reason. Sometime before it was fixed by installing the latest updates.
I got this problem after VMware tools installed and guess will fix in next updates, hope to help you .
If you see black screen first reboot. use f8 to boot in safe-mode
Then in Control Panel> Device Manager> expand listed display Adapter and Monitor and Disable both.
This issue is about display and monitor driver in vmware tools.