Patent ID: 6964054
Filing Date: 2005-11-08
Classification: G06F

Abstract:
1. A computer system for operating a plurality of display devices, comprising: at least a first video adapter with a first video BIOS and a video driver, and a second video adapter with a second video BIOS; a processing unit; a system memory operatively coupled to the processing unit; a read only memory operatively coupled to the processing unit, the read only memory storing a system BIOS that, when read by the processing unit, causes the processing unit to identify one of the first and second video adapters as a primary video adapter and the other of the first and second video adapters as a secondary video adapter; the processing unit, as directed by the system BIOS, executing a POST (power on self test) during which the system BIOS stores the first video BIOS in a first memory area in the system memory of the computer system, and copies the first video BIOS to a second memory area in the system memory, when the first video adapter is the secondary video adapter and the second video adapter is the primary video adapter, thereafter the second video BIOS being stored in the first memory area, thereby overwriting the first video BIOS in the first memory area; and the video driver for the first video adapter, the video driver copying the first video BIOS from the second memory area to a third memory area in the system memory; wherein the computer system uses at least one of the first and second video adapters to display information on at least one display device connected to the computer.