Patent ID: 8730257

Claim:
A method for driving a first display and a second display mirrored to the first display from a computer system, comprising: obtaining a framebuffer update for a portion of a first framebuffer associated with a first display, the framebuffer update obtained from the first framebuffer or an update buffer after being processed to create information to cause a graphical update on the first display; performing a color-correction operation on the framebuffer update to obtain a color-corrected framebuffer update that is loaded into a portion of the second framebuffer without modifying any remainder of the second framebuffer and that enables color output of the graphical update from a second display to substantially match color output from the first display, the color-corrected framebuffer obtained without re-rendering the graphical update for the second display; using the framebuffer update to drive the first display; loading the color-corrected framebuffer update into a second framebuffer associated with the second display; and using the color-corrected framebuffer update to drive the second display, wherein the framebuffer update and the color-corrected framebuffer update correspond to mirrored output for the first display and the second display.