Brand new new card...tried uninstalling and reinstalling drivers...same issue. Upon waking the computer from sleep mode, or even if the screen went to screen saver I get the snowy screen. It'll try to do something as the screen goes black for a second, then snowy again....then no graphics at all.
Radeon Software Version - 18.6.1
Radeon Software Edition - Adrenalin
Graphics Chipset - Radeon RX 580 Series
Memory Size - 8192 MB
Memory Type - GDDR5
Core Clock - 1405 MHz
Windows Version - Windows 10 (64 bit)
System Memory - 16 GB
CPU Type - AMD Ryzen 7 1800X Eight-Core Processor