Patent ID: 8730230

Claim:
A graphics display method for continuously displaying a plurality of graphics data on multiple display devices of a computer system that contains a central processing unit (CPU) which has a memory controller inside the CPU, a graphics-processing unit coupled to the memory controller, and a system memory directly accessed by the CPU, wherein the display devices are coupled to the graphics-processing unit, the method comprising: providing a common clock source to the display devices and synchronizing a plurality of blank periods of the display devices according to the common clock source, the plurality of blank periods of the display devices are in different frequencies; receiving a power saving signal from the CPU, the power saving signal indicates a request for executing a power saving process by the CPU during a non-responding period of the CPU, so as to reduce consumptive power of the CPU, wherein memory access from the graphics-processing unit to the system memory through memory controller is blocked during the non-responding period of the CPU; detecting an upcoming least common multiple occurrence of the blank periods of the display devices; and executing the power saving process within the least common multiple occurrence, wherein the least common multiple occurrence is a period that the blank periods of all display devices occur at the same time.