start.sh

#!/bin/bash
# Helpful to read output when debugging
set -x

## Load the config file with our environmental variables
source "/etc/libvirt/hooks/kvm.conf"

# Stop display manager (KDE specific)
systemctl stop sddm.service

#sleep 3

# Unbind VTconsoles
echo 0 > /sys/class/vtconsole/vtcon0/bind

#sleep 2

# Unbind EFI-Framebuffer
echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind

# Avoid a race condition
sleep 5

# Unload all Nvidia drivers
modprobe -r nvidia_drm
modprobe -r nvidia_modeset
modprobe -r drm_kms_helper
modprobe -r nvidia
modprobe -r i2c_nvidia_gpu
modprobe -r drm

sleep 2

# Unbind the GPU from display driver
virsh nodedev-detach $VIRSH_GPU_VIDEO
virsh nodedev-detach $VIRSH_GPU_USB
virsh nodedev-detach $VIRSH_GPU_SERIAL
#It hangs right here when it tries to detach audio device
virsh nodedev-detach $VIRSH_GPU_AUDIO

# Load VFIO kernel module
modprobe vfio
modprobe vfio_pci
modprobe vfio_iommu_type1

sleep 2