Passthrough issues with Intel Intergrated graphic (audio) and Geforce GTX 660 TI and GeForce GTS 450 (black screen)

danman

Member
Jun 5, 2021
35
1
13
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Hi

I'm currently fighting the passthrough game.

Optiplex - Intel Intergrated graphic (audio)
I got a new device which is an Dell Optiplex 7040 which has VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:1912] (rev 06) integrated.

Graphic works but no audio is available. The installation is with UEFI/systemd.

What I've done so far - based on that GUIDE and a bit for systemd from this TUTORIAL:

/etc/modprobe.d/blacklist.conf
Code:
blacklist snd_hda_intel
blacklist snd_hda_codec_hdmi
blacklist i915

/etc/modprobe.d/kvm.conf
Code:
options kvm ignore_msrs=1

/etc/modprobe.d/vfio.conf

Code:
options vfio-pci ids=530

/etc/kernel/cmdline
Code:
root=ZFS=rpool/ROOT/pve-1 boot=zfs intel_iommu=on iommu=pt

linux vm
Code:
hostpci0: 0000:00:02,pcie=1,x-vga=1


AMD Processor - Geforce GTX 660 TI and GeForce GTS 450 (black screen)
I have reinstalled proxmox again on this server. I had successfully run the GTS 450 card before on a Linux VM. But this vm is now running on optiplex.
I am now trying to get one of the card through to a Windows 11 vm. Windows is fully installed and the PCIe drivers are also installed on Windows via virtio-win.
The installation was done via GRUB. I could not install via UEFI because it froze after a while.

What I've done so far - based on that TUTORIAL:

/etc/modprobe.d/blacklist.conf
Code:
blacklist nouveau
blacklist nvidia
blacklist nvidiafb
blacklist nvidia_drm

/etc/modprobe.d/kvm.conf
Code:
options kvm ignore_msrs=1 report_ignored_msrs=0

/etc/modprobe.d/pve-blacklist.conf (probably done during the installation?)
Code:
blacklist nvidiafb


/etc/modprobe.d/vfio.conf

Code:
softdep nouveau pre: vfio-pci
softdep nvidia pre: vfio-pci
softdep nvidiafb pre: vfio-pci
softdep nvidia_drm pre: vfio-pci
softdep drm pre: vfio-pci

/etc/modules
Code:
vfio
vfio_iommu_type1
vfio_pci

/etc/default/grub
Code:
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 iommu=pt"

I don't know what else I could do ...

Thanks
Dan
 
Got the issue with the audio on the optiplex node "sorted". Just bought an USB audio dongle. Not the solution but it works.

Still the issue on AMD. I double checked the guides again and installed also windows 10 but on both are the same result.

Could it be an BIOS legacy issue?
Would be a new graphic card help?
 
Nice!
That is sorted! Not a super duper solution but I'm happy.
I bought a new graphic card and installed proxmox in efi mode.

Thanks for having an eye on this thread ;)
 

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