VFIO OVERRIDE

You will need to creat some files manualy.
1. Create vfio-pci-override.sh in /sbin with the following content:

#!/bin/sh

DEVS="0000:02:00.0 0000:02:00.1"

for DEV in $DEVS; do
    echo "vfio-pci" > /sys/bus/pci/devices/$DEV/driver_override
done

modprobe -i vfio-pci

2. Create file vga_hook in /usr/share/initramfs-tools/hooks/ with the following content:

#!/bin/sh
PREREQ=""
prereqs()
{
     echo "$PREREQ"
}

case $1 in
prereqs)
     prereqs
     exit 0
     ;;
esac
. /usr/share/initramfs-tools/hook-functions
copy_exec /sbin/vfio-pci-override.sh /sbin

3. Make both files executable:

$ sudo chmod +x /sbin/vfio-pci-override.sh
$ sudo chmod +x /usr/share/initramfs-tools/hooks/vga_hook

4. Add the following in modprobe.d/local.conf in place of the "options vfio-pci ids=xxx" line if present and remove the boot options from grub cmd line "vfio-pci.ids=10de:13c0,10de:0fbb".

install vfio-pci /sbin/vfio-pci-override-vga.sh

5. Rebuild your initramfs:

$ sudo update-initramfs -u

6. Reboot and proffit.

P.S. The line DEVS in vfio-pci-override.sh is for your current setup from the lspci -vnk you posted before. You can check for success of the update-initramfs by:

$ sudo lsinitramfs -l /boot/initrd.img-xxx |grep vfio-pci-override-vga.sh