SYSTEM AND METHOD FOR SYNCHRONIZATION OF VIDEO DISPLAY OUTPUTS FROM MULTIPLE PC GRAPHICS SUBSYSTEMS

摘要

A system and method for synchronization of video raster display outputs from multiple PC graphics subsystems (60A1, 60A2, 60A3) to facilitate synchronized output onto multiple displays are disclosed. The system and method allow multiple graphics subsystems (60A1, 60A2, 60A3), in a single or multiple chassis (78), to be used to provide multiple synchronized view ports of a single 3D database or a wide desktop with reduced inter monitor artifacts and interference. The system for synchronized video display outputs generally comprises a plurality of graphics subsystems (60A1, 60A2, 60A3) being housed in one chassis (78), each graphics subsystem comprising a graphics processor (62), a sync card (100) for each chassis (78) in which at least one graphics subsystem (60) is housed, the sync card (100) is adapted to communicate with a plurality of graphics processors (62) within the same chassis (78) for distribution of reference clock thereto and with a host processor (54) for the corresponding chassis (78) of the sync card (100) for transmission of a raster sync interrupt thereto.