#!/bin/bash

rmmod nvidia
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 _PS3 $(acpi_call "\_SB.PCI0.PEG.VID._PS3")
echo OFF $(acpi_call "\_SB.PCI0.PEG.VID._OFF")