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发表于 2013-7-3 23:54:35
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基本搞清楚了,是【AMD ZeroCore Power技术】惹的祸
Nearly all PCs can be configured to turn off their displays after a long period of relative inactivity and lack
of user input. This is known as the long idle state; where the screen is blanked but the rest of the system
remains in an active and working power state (referred to as the G0/S0 ACPI states). When the PC
reaches this state and applications are not actively using background GPU resources, the GPU enters
a state where the graphics core power draw is minimized. In this state, all major functional blocks of the
GPU (including the compute units; multimedia, audio and display engines; memory interfaces; etc.) are
completely powered down.
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