When booting, screen is fine through UEFI boot. However, when it starts loading Windows, my screen turns snowy and starts slowly going in and out of being dark.
Once I unplug my video connection and plug back in, all is fine. After uninstalling drivers and restarting, no problem. I have even tried rolling back a version. Seems this only occurs when the AMD software/specific drivers are installed, which automatically gets installed after a restart.
Windows 10 x64 Pro 1709
NVMe Samsung EVO 960 SSD
GIGABYTE Z370 HD3P mobo (UEFI boot)
Radeon RX550 2GB discrete graphics card
AMD driver: 23.20.15033.5003, dated 3/22/18
Connected monitor: 4k Sharp TV via HDMI to DP (adapter)