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Method for a low-cost mechanism for video redirection

IP.com Disclosure Number: IPCOM000010226D
Publication Date: 2002-Nov-06
Document File: 3 page(s) / 263K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a low-cost mechanism for video redirection. Benefits include improved functionality.

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Method for a low-cost mechanism for video redirection

Disclosed is a method for a low-cost mechanism for video redirection. Benefits include improved functionality.

Background

        � � � � � Conventionally, software solutions provide the capability to direct video to a remote computer for display. These solutions require that the remote system is up and running. If the system software crashes or has not yet booted, the video cannot be displayed.

        � � � � � Existing hardware solutions to video redirection, require local buffering on an adapter card with added cost due to requiring memory. Other solutions require that the chipset components implement peer-to-peer capabilities, which are generally considered high-risk implementations and typically undesirable due to scheduling impacts.

General description

        � � � � � The disclosed method is the redirection of video for display at a remote location. This capability enables an IT manager to manage one or many computers from a remote location (see Figure 1). The method does not require local memory and is not peer to peer.

        � � � � � Server platforms use off-the-shelf video adapters to minimize platform cost. The disclosed method does not require any alterations to existing graphics adapters.

        � � � � � The key elements of the disclosed method include:

•        � � � � Chipset memory reservation capability

•        � � � � Chipset mirror logic

•        � � � � LAN video fetching logic

Advantages

Some implementations of the disclosed structure and method provide one or more of the following advantages:

        � � � � � The disclosed method provides advantages, including improved functionality due to the capability to direct video to a remote computer for display without requiring local memory or a peer-to-peer connection.

Detailed description

        � � � � � The disclosed method is special-purpose logic in the chipset that mirrors CPU writes to the graphics controller frame buffer memory. The chipset mirrors the video control registers so th...