Good day, I have some really hard time getting my GPU passed through to a VM, my current host is Linux Mint 21.1. The bios setting is fine, but for some reason I get a black screen every time the VM starts. I have narrowed it down to the startup hook script, where it is stuck (meaning it wont do the following) when it is doing the ‘virsh nodedev-detach’ instruction.

virsh nodedev-detach pci_0000_09_00_0 virsh nodedev-detach pci_0000_09_00_1

Following the instructions of the following link: https://www.reddit.com/r/VFIO/comments/n35k69/successful_6800_xt_passthrough_are_such_posts/

I’m not sure if the card itself have limitations, or is it LM. Just want to confirm whether I am wasting my time on this card? Or if it is the combination of both Linux and my GPU I’m basically try to do a single GPU pass-through with scripts that will release GPU from host and pass through to VM, till the VM is shut down, then the host have control over the GPU again.

  • nitrolife@rekabu.ru
    3·
    1 year ago

    You have one GPU card? If yes you need some additional hooks (kill DE sessions, stop X, etc). Look here: https://github.com/joeknock90/Single-GPU-Passthrough .

    UPD: Sorry. I read the reddit post. So you pass through single GPU. You load GPU bios when Windows load?

    In general, such a configuration will be quite complicated, but if you want to try, show the VM configuration and the start hook. Without this not easy to say.

    • slimsalmOP
      1·
      1 year ago

      “UPD: Sorry. I read the reddit post. So you pass through single GPU. You load GPU bios when Windows load?”

      • I haven’t done that. I was of opinion that the radeon rx6800 didn’t need it as nvidia does. Will download a bios and load it with the Vm.

      “In general, such a configuration will be quite complicated, but if you want to try, show the VM configuration and the start hook. Without this not easy to say.”

      • I reverted back to pre-virtmanager installation, will try this evening to follow the steps, including adding the bios to the VM, will also post the configurations and hooks. Will appreciate it if I don’t need to dual boot anymore, having snapshot of my windows VM will be of great value for my workflow