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Bash

#!/bin/bash
set -x
# Stop display manager
systemctl stop display-manager
# Unbind EFI Framebuffer
echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
# Unload NVIDIA kernel modules
modprobe -r nvidia_drm nvidia_modeset nvidia_uvm nvidia
# Unload AMD kernel module
# modprobe -r amdgpu
# Detach GPU devices from host
# Use your GPU and HDMI Audio PCI host device
virsh nodedev-detach pci_0000_01_00_0
virsh nodedev-detach pci_0000_01_00_1
# Load vfio module
modprobe vfio-pci