Things You'll Need
Instructions
Turn off the laptop and the Xbox, and disconnect them from the power supply.
Plug the cable's AV connector to the Xbox console's AV port.
Plug the cable's VGA connector to the the VGA-to-USB adapter's VGA port.
Plug the adapter's USB connector to a laptop USB 2.0 port.
Turn on the Xbox console.
Configure your new screen size and resolution from the console's "System" section.