Controlling power states of a computer

Details Controlling power states of a computer Controlling power states of a computer

1998-04-03

2000-09-26

Ray, Gopal C.

Electrical computers and digital processing systems: support

Computer power control

By external command

713320, 713323, 345212, G06F 126, G06F 132, G09G 100

Patent

active

061254495

ABSTRACT:
Method and apparatus of controlling a power state of a computer, the computer being connected to a monitor having a power control button. The computer is connected to the monitor over a video cable, and activation of the power control button is communicated to the computer over a wire in the video cable. In response to the activation signal, a system management interrupt is generated to invoke an SMI handler to change the power state of the computer. The power states of the computer include an ON state, an intermediate power state (such as Sleep state), and a suspend state (such as Soft-Off state).

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