Intel ARC HDMI audio not detected (PCIE forwarded GPU)
question
This might be a Bazzite issue or it might be a GPU forwarding issue, I'm not sure. I set up a Bazzite VM running on proxmox and have forwarded an Intel ARC B580 GPU to it. I think I did all the stuff you're supposed to do there: enabling the vfio kernel modules, blacklisting i915, xe and snd_hda_intel on the host, binding vfio to both the GPU video and audio PCIE devices on the host, and passed it through to the VM (bot the video and audio device).
However, at some point the HDMI audio has stopped working completely. It was working initially, but somewhere along the line it simply stopped working. I don't remember changing a config that would have broken it, but it's entirely possible, I've been messing with this setup a fair bit. The audio device is detected in
I did see these messages in the kernel logs, but they could be a red herring. I did also notice that the
The problem remains after a full software and firmware update (
It's entirely possible this is a GPU forwarding issue, but I'm 95% sure I've done everything correct there, so I figured I would ask here too, maybe someone has some insight that help me narrow it down.
Thanks in advance!
However, at some point the HDMI audio has stopped working completely. It was working initially, but somewhere along the line it simply stopped working. I don't remember changing a config that would have broken it, but it's entirely possible, I've been messing with this setup a fair bit. The audio device is detected in
lspcicat /proc/asound/cardsaplay -Laplay -lauto_nullI did see these messages in the kernel logs, but they could be a red herring. I did also notice that the
snd_hda_codec_hdmiThe problem remains after a full software and firmware update (
ujust updateIt's entirely possible this is a GPU forwarding issue, but I'm 95% sure I've done everything correct there, so I figured I would ask here too, maybe someone has some insight that help me narrow it down.
Thanks in advance!
