I'm setting up a new system for my sister. I have:

- MSI x570-A Pro

- Ryzen 5 2600

- EVGA GTX 1660 XC

- The latest version of unRAID (flashed onto a drive with the unRAID utility today)

When I attempt to boot the VM, I get no video out of the car.

I added both the vfio-pci.ids (all four IDs for this card) and video=efifb:off to the boot options. Note that the card has four PCIe functions, all four are in the same IOMMU group, and that group only contains this card.

The motherboard only has one CPU PCIe slot so I can't effectively put the GPU I want to pass thru in a secondary slot (every other slot is PCH).

I used the same setup on this computer as I have on my other X299 Intel computer (which also has a 1660 passthru in its primary slot) and this one doesn't work.

I'm seeing many posts online about a BIOS that broke this support, but then there are other posts that say the "AMD ComboPI1.0.0.4 Patch B (SMU v46.54)" update in the BIOS fixed their passthru issues. That was introduced on this motherboard 2019-10-30. The board shipped with 2019-11-07 and I updated it to 2020-01-13. Neither the shipped nor updated BIOS work for this.

I am at a loss for how to debug this without acquiring more GPUs, a different motherboard, etc. The VM works with a VNC head (in which I installed Windows half-way through my debugging) but will not use the GPU.

I also tried downloading a VBIOS for this card and trying that to no avail.

Has anybody had luck with this CPU/Motherboard/GPU combination? Or do you have suggests on what to try?

My configuration is attached.

NewPC.xml

Sorry for hijacking this. Did you ever succeed? I could get the same motherboard really cheap and woul start with a 2600x and  GT 1030. Before burning money, I'd like to know if there is an actual working fix.

 

Thanks!