Maybe it's got to do with the chipset? Not sure, I don't have any other Ryzens to compare against. But `iommu=soft` is strictly required on my system, otherwise

Maybe it's got to do with the chipset? Not sure, I don't have any other Ryzens to compare against. But `iommu=soft` is strictly required on my system, otherwise the screen just stays black after the boot manager.