I know many of us have had issues with GPU passthrough being difficult, but things were working well for me in the past. I'm working something weird right now. My passed-through audio device is showing as being attached to vfio, but it's not showing in the "other PCI devices" for attaching to the VM. I'm running 6.12.13 and have attached my diagnostics.

 

Background:

I have a lightweight Debian VM that I've used as an Airplay server for the past year or so. I pass through the audio card on my mobo and use it to output to my amplifier. It was working flawlessly for a year or so, but I've broken it.

 

Here's my passthrough setup, and the missing pcie device in the VM manager.

 

 

 

I did some upgrades to my server and moved around some pcie devices -- the passthrough vfio didn't line up anymore. I reset the vfio config (uncheck and recheck) and successfully passed the audio device to vfio at boot.

 

What i've checked:

Is vfio grabbing the device? It looks to be. The logs show the device is grabbed.

 

 

Here's the weird one... Libvirt seems to be having trouble with the device.

 

I've never seen anything like this before. Any ideas?

ragsserver-diagnostics-20241001-0149.zip

I'm an idiot... Tried to passthrough a sound card as a pcie device. There's a "sound card" section and everything.....