proxmox multi-gpu passthrough
a checklist of things to run through when passing through GPUs or PCI-E devices in Proxmox
when I was trying to do a PCI-E passthrough for the first time in Proxmox, I couldn’t get it to work because rombar needs to be disabled on all GPUs apart from the “main” one.
the “main one” doesn’t even have to be set as the primary GPU.
so the multi-gpu passthrough checklist is:
- make sure nothing is using the gpu(s) on the host (check with
lspci) - check
All functionswhen adding it Ballooning Deviceneeds to be disabled, as the memory cannot be dynamically mapped when dealing with PCI-E devices- if adding more than one GPU, make sure all GPUs apart from one have
ROM-Barunchecked
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