#!/bin/bash
# This script should contain the command(s) nessesary to switch off the
# nVidia card.
# Examples are available in /usr/share/doc/bumblebee

rmmod nvidia
if lsmod | grep -q nvidia; then
 echo "Error: could not unload nvidia module, leaving card turned on"
 exit
fi
modprobe acpi_call

if ! lsmod | grep -q acpi_call; then
    echo "Error: acpi_call module not loaded"
    exit
fi

acpi_call () {
    echo "$*" > /proc/acpi/call
    result=$(cat /proc/acpi/call)
    case "$result" in
     Error*)
      echo "Disabling nVidia Card failed ($result)."
      ;;
     *)
      echo "Disabling nVidia Card Succeded."
     ;;
    esac
}

echo $(acpi_call "\_SB.PCI0.PEG0.PEGP._OFF")