I just built a new PC, carrying over a RX 570 from a previous build. The card functioned properly in the previous build, albeit on older drivers. Fresh Windows 10 installation with very little installed outside of Xbox, Steam, and Firefox.
Nearly every single game I have tried can only show any video for 0.5-2s before the screen goes to complete black. I can alt-tab out and the display resumes normally, and I can interact with the game despite the screen being black. It happens in 3D intensive games, and in 2D non-intensive games. If I manage to get the game in to a windowed mode it appears to work properly.
Forza Horizon 4
In Halo MCC I was able to keep the game from going to fully black while in fullscreen, it would just frequently drop to black within menus, especially around making selections in menus. Once the game loaded, the flickers to black stopped, until I called up the menu with the escape key.
Games that have worked:
In Cuphead I encountered a slightly different issue, where the display frequently drops to black, as though it is changing resolutions, going in and out of scenes, or between menus. The resolution isn't actually changing, but the monitor is going through a similar process as though it were.
Software Version - 2020.0117.1506.27190
Driver Version - 19.50.15.01-200117a1-351300C-RadeonSoftwareAdrenalin2020
Provider - Advanced Micro Devices, Inc.
2D Driver Version - 18.104.22.1684
Direct3D® Version - 9.14.10.01432
OpenGL® Version - 26.20.11000.13586
AMD Audio Driver Version - 10.0.1.12
Vulkan™ Driver Version - 2.0.127
Vulkan™ API Version - 1.2.131
Windows Version - Windows 10 (64 bit)