Patent ID: 8963935
Filing Date: 2015-02-24
Classification: G06F,G09G

Abstract:
1. A method for obtaining an extended display identification data (EDID) signal associated with a display device in a multi-graphics-processing-unit (multi-GPU) system based on a hot-plug detection (HPD) signal also associated with the display device, the method comprising: learning, from an embedded controller, that the HPD signal has been generated; in response to learning of the HPD signal, setting a flag associated with fetching the EDID signal; after setting the flag, causing a discrete GPU (dGPU) that is coupled to the display device to power on; loading and initializing a driver corresponding to the powered-on dGPU; causing the powered-on dGPU to confirm that the flag is still set; causing the powered-on dGPU to obtain the EDID signal; and causing the powered-on dGPU to power off.