Can't get igpu output to monitor

[Mugga]

Hello guys,

I'm trying to passtrough my integrated GPU to a VM. The Proxmox server got a i5-8400 CPU. I think I did all the stuff in order to get Proxmox running headless. When Proxmox is booting I see a few "command lines" but then the display stays, so the "normal" show ip screen of proxmox isnt getting displayed.

The VM config looks like this:


When running the VM I still get the VNC output but I can connect via RDP normally on the machine. In the windows device manager the integrated gpu is shown without any errors. I can also run graphical application such as blender, which normally doesnt run on a vm. But when I connect a monitor to the integrated gpu, the screen stays black, and monitor is entering sleep mode.

In /etc/default/grub I got at the moment:

quiet intel_iommu=on pcie_aspm=off

In /etc/modules:

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
kvmgt
vfio-mdev

In /etc/modprobe.d/blacklist.conf:

blacklist snd_hda_intel
blacklist snd_hda_codec_hdmi
blacklist i915

In /etc/modprobe.d/vfio.conf:

options vfio-pci ids=8086:3e92

I tried many different options I found on the net, but nothing worked. Some even broke the gpu passtrough trough the vm completely. Maybe someone could get me on the right track.

 

[fax]

Hi,
I'm trying this since weeks - unfortunately without success.
The "key" should be to extract a "vbios rom file".
My internel GPU is a "Comet Lake UHD630".
Neither could extract a "rom file" nor find any suitable for me.

 

[Mugga]

Yeah, I also searched everywere and tried different things. I just went the route and got a dedicated gpu. Such a shame that there doesnt seem to be a way to get this working.

 

[SamBGB]

Same problem here the iGPU shows up in windows fine and the intel display driver is installed but connecting a monitor appears to output a blank screen. Anyone any further forward with this?