As far as I know, nobody has been successful in passthrough of iGPU of Ryzen (even when it looks like it should work).Hello,
I have a small Homeserver with the A520M-ITX/ac and Ryzen 4350G. I'm pretty new to proxmox and linux and had trouble to passthrough an Intel i340T4 but that was mostly because i used q35 machine with freebsd. Now its working fine although i get the same perf count error:
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I have also just 5 IOMMO Groups with the newest BIOS:
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When I tried to passthrough the m.2 E-Key Intel wifi module the system crashes because the M.2 SSD with the host system is in the same group. I used an old router for wifi for now but do you think with an old BIOS I could get better IOMMO Groups as well?
I try to passthrough the iGPU at the moment but even if the system does not crash the vm wont start at all.
Yes, some BIOS version have better groups than others, sometimes that better version is older. The A520 chipset has only limit hardware support for passthrough.