Selectable graphics controllers to display output

Selectable graphics controllers to display output

A computing system includes a plurality of graphics controllers, a reserved memory region, a shadow memory region, and a system Basic Input Output System (BIOS). The reserved memory region is to store a plurality of video Basic Input Output System (BIOS) images. The shadow memory region is to store...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANBAZHAGAN BARANEEDHARAN, THAI THONG
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:A computing system includes a plurality of graphics controllers, a reserved memory region, a shadow memory region, and a system Basic Input Output System (BIOS). The reserved memory region is to store a plurality of video Basic Input Output System (BIOS) images. The shadow memory region is to store a selected video BIOS image corresponding to a selected graphics controller, such that the selected graphics controller is to display output in response to a service request for video BIOS services, without use of a graphics driver. The system BIOS is to enable changing the selected graphics controller, based on copying a video BIOS image from the reserved memory region to the shadow memory region.