Desabilitando webcam integrada

find /sys/ -path "*usb*product*" -exec ls {} \; -exec cat {} \; 2> /dev/null
echo 1 > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/remove
modprobe -r uvcvideo
modprobe uvcvideo

fonte: http://ubuntuforums.org/showthread.php?t=1211371