Passing Though a GPU
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Double check you did not forgot to pass the whole GPU (which is maybe using 2x PCIe addresses, like the GPU itself and the sound/HDMI part). Please do a lspci command in the Dom0 to check you don't have any other Nvidia entry.
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@olivierlambert Thanks again for your input. How do I go about the lspci in Dom0? Iām learning more, but Iām still a novice. lol
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You were correct. It had two items for the NVIDIA GPU to pass through. However, it still did not show after getting passed, assigned, and rebooted.
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That's expected, displaying PCI passed in the UI will come in few days now
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Still, despite the display issue, does it work now?
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@olivierlambert Something is still off. When I run the Nvidia-smi command, I get an unknown error after installing the NVIDIA Drivers.
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lspci in the VM shows the 2 nvidia pci devices, right?
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@Dean50 something strange is going on. I turned on transcoding in the Jellyfin console. It seems that the transcoding is working when it is switched on, but it is not providing audio. Regardless, it seems that XCP-ng is passing through the GPU as it is intended. Thanks for all your input. Greatly appreciate the support.
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Hey no problem, you are welcome
Really hope you'll make it! -
I was able to get things working. Even though it does not show in the GUI on XO, it works for transcoding. However, I cannot complete a backup of that particular VM with this error...
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- Excellent news for being able to rely on the GPU So the driver accepted to install? What did you change?
- The UI with real PCI passthrough displayed is now available in latest XO.
- Excellent news for being able to rely on the GPU
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I thought because the nvidia-smi command showed an error that it did not pass through correctly. I went into the Jellyfin app and set it to use Transcoding, and it worked. Now, the only problem is, for some reason, I can't get that particular VM to complete a remote Delta backup. I continue to get the error shown above. I've deleted the job and rebuilt it, but get the same error. Any ideas? I really need to back up this media server. Thanks again.
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The reason why is written in caps: VM HAS PCI ATTACHED. You can't snapshot live a VM with a PCI device attached. A possible trick: use "Offline snapshot" in your backup job, that might work.
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@olivierlambert yes, the reason was quite obvious. A solution is what I was looking for. I will definitely try it with offline snapshots. Appreciate the info.
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Keep us posted!
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@olivierlambert That worked. I selected an offline snapshot, and the job was completed. Thanks again.
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\o/ perfect!!
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