Patent ID: 7996578
Filing Date: 2011-08-09
Classification: G06F,Y02D

Abstract:
1. A data processing system comprising: an input/output (I/O) port configured to provide data representing video images to a display device in a first mode in which the data processing system operates a first component at a first frequency, and further configured to provide a communications channel for synchronizing data between the data processing system and a host system, wherein the synchronizing is capable of being performed in a second mode in which the data processing system operates the first component at a second frequency which is less than the first frequency; and a processing system coupled to the input/output port and configured to execute at least a first device driver which is configured to control the first component in the data processing system and configured to execute a second device driver which is configured to control a second component that provides the data representing the video images, wherein the second device driver causes a first notification to be provided to the first device driver when the data processing system transitions to the first mode, wherein the second device driver causes the first notification to be provided to the first device driver before the data processing system enters the first mode and causes a second notification to be provided to the first device driver after entering the first mode and causes a third notification to be provided to the first device driver before exiting the first mode and causes a fourth notification to be provided to the first device driver after exiting the first mode.