still needs help on HDMI sound! Many thanks.
MotherBoard: Asus TUF B450-plus
CPU: Ryzen5 2600
HardDisk: Crucial MX100
RAM: CORSAIR Vengeance RGB DRAM 16GB
GPU: ASUS ROG Strix Radeon RX 570 O4G
This is what I see and what the spec shows, also I do not have any sound devices, i have lilu and applealc up-to-date
On-board sound works with voodooHDA.kext. Working with hdmi/dp sound.
Weird screen is solved by changing the hdmi-dvi cord to dvi-dvi cord.