That would take a special set up and the laptop would have to have a
separate video card for the SVGA output. This is NOT the typical
arrangement in your mill of the run laptop. They have a single video
card, which is generally just a large IC on the motherboard, and the
output from it goes to the LCD panel. That video is also structured
further into the RGB components and sent to the SVGA jack for your
external monitor. But it has the same video as is being sent to the LCD
panel, it is just in a different format and of a somewhat inferior quality.