System and Method for Powering an Information Handling System Through a Display Cable

摘要

A display provides power to an information handling system through a display cable. The display cable includes a power wire and an auxiliary channel. The display and information handling system communicate through the auxiliary channel to coordinate power transfer from the display to the information handling system, such as in the form of a trickle charge to a battery integrated in the information handling system.

主权项

1. An information handling system comprising:
a housing; plural processing components disposed in the housing that cooperate to process visual information; a battery disposed in the housing; a display interface port operable to accept a display cable and to communicate visual information through the display cable to a display and having a bidirectional auxiliary channel to communicate management information, the display interface further operable to provide power to the display and receive power from the display; and a power manager running on a processing component, the power manager operable to request a battery charge from the display through the display cable auxiliary channel and to coordinate charging of the battery with power received at the display interface port through the display cable and from the display.