[SOLVED] Windows 10 VM GPU passthrough with HDMI & Monitor Black Screen


New Member
May 22, 2023
Hello, I am trying to use my windows 10 VM for games.

I have successfully Passed through mt RTX 3060 TI to the VM and I am able to connect with RDP, although I found the lantecy with RDP unplayable and tried to plug up a monitor directly to the GPU and ProxMox shows up and it looks like its going to load winodws and instead shows a black screen if I stop the VM it shows a blue screen then the monitor shortly turns off and after a few trys windows startup repair displays on the monitor and I can go through the options with keyboard no problem.

Here is my grub setup.

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt i915.enable_gvt=1"

here is my win 10 vm config

bios: ovmf
boot: order=virtio0;ide2;net0;ide0
cores: 5
cpu: host,hidden=1,flags=+pcid
efidisk0: local:101/vm-101-disk-0.qcow2,efitype=4m,pre-enrolled-keys=1,size=528K
hostpci0: 0000:01:00,pcie=1,x-vga=1
ide0: local:iso/virtio-win-0.1.229.iso,media=cdrom,size=522284K
ide2: local:iso/Windows.iso,media=cdrom,size=4697792K
machine: pc-q35-7.2
memory: 30800
meta: creation-qemu=7.2.0,ctime=1687724638
name: VM-Windows10
net0: e1000=CE:05:1F:8A:F6:3C,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: win10
scsihw: virtio-scsi-pci
smbios1: uuid=556df264-3f72-4b6d-b9c6-a504d800ec14
sockets: 1
usb0: host=0a12:0001
virtio0: local:101/vm-101-disk-1.qcow2,cache=writethrough,iothread=1,size=200G
vmgenid: b1efa37a-e83e-49b4-9fd3-aa096c122e82

if you require any additional information, please let me know, I look forward to the community's response thank you all for your support.
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