You are not going to want to hear this but...
Lower the game setting till you get to a point that is stable.
OR, try older driver versions till you find one that is stable.
mh - in 2016-2017 AMD had problems with 2 screens and playing games + watching videos same time
also had those "white screens" - i think it was fixed in 17.6.2
try this driver pls - and then post your findings at www.amd.com/report
If a new displayport cable doesn't work, I'll try this driver. Thanks for your help.
I had the exact same problem with the drivers that came with my video card, which were significantly older. I installed the new drivers with a clean install.
I'm going to try changing the cable. My old video card used an HDMI cable while this one uses a Displayport cable that I had not tested before. I got a chance to use my PC for work today and it semi-randomly flashed black, as though it was a signal issue. Maybe a similar issue while in full screen 3D causes the video card to crash.
The frustrating thing about this is that the problem might not show up for 2h but then might happen five times in a twenty minute period.
It's very frustrating having a new PC which doesn't work as expected.