iGPU passthrough audio problem

szp4n3r

New Member
Aug 8, 2022
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Hi
I have a problem with PCI iGPU passthrough...
My set is Lenovo m93p with Intel i7-4770 (HD graphic 4600), and I would like to connect VM (Win10) with TV.
Proxmox 6.4 installed on UEFI. VM configured as SeaBIOS.

I had tried many tutorials from internet (two weeks of trials) and finally working Video! But i don't have Audio. :(
With this instruction Video working: https://forum.proxmox.com/threads/i5-4440-hd-4600-passthrough-code-43.75322/post-339028
But:
- audio not working - no audio devices on VM.
- after reboot proxmox, VM can't start becouse vfio not existing (proxmox login screen on monitor). I always must add PCI "intel hd" to VM on GUI, click start and the next remove PCI, then it works (with device added in conf as args).
- VM not started when VGA=none.
- after reboot proxmox, I must disconnect and connect again displayport cable (mabe becouse i have cabel displayport->hdmi).
When I add Audio Device (ich9-intel-hda / intel-hda / AC97) to VM, then W10 see Audio device, but TV not heard.
Problem with pci after reboot is accepted (though stupid), but problem with audio no.
It would be best if there was a solution by which I would turn on the VM with "Intel HD" added in the GUI and everything just started working. :p
Maybe whos can help me? :)
 
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