Uses the SVGAlib library to display fullscreen on a VGA-compatible graphics card.
You may need to be root in order to have IO permissions to drive the VGA device.
This option will provide a physical screen size for applications which wish to remain resolution independent. sizex,sizey are the x,y size of the screen in millimeters, unless the optional dpi string is affixed, in which case, they represent resolution in dots-per-inch.