Section "Module"
    Load           "modesetting"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    BusID          "PCI:4:0:0" # where the right bus can be found with: lspci | grep VGA
    Option         "AllowEmptyInitialConfiguration"
    Option         "AllowExternalGpus" "True"
EndSection