Method and apparatus for configuring multiple displays associated with a computing system

• US 8,860,633 B2
• Filed: 06/17/2009
• Issued: 10/14/2014
• Est. Priority Date: 03/02/1998
• Status: Expired due to Term

• Current Assignee: ATI Technologies ULC (Advanced Micro Devices, Inc.)
• Original Assignee: ATI Technologies ULC (Advanced Micro Devices, Inc.)
• Inventors: Grigor, Gordon Fraser, Giemborek, Vladimir F., Haberfellner, John E.
• Primary Examiner(s): Nguyen, Kevin M
• Application Number:
  US12/486,319
• Publication Number:
  US 20090322765A1
• Time in Patent Office: 1,945 Days
• Field of Search: 345/3.1, 345/3.2, 345/3.3, 345/3.4, 345/1.1, 713/1, 713/100
• US Class Current: 345/3.1
• CPC Class Codes: G06F 13/4022 using switching circuits, e.g. switching matrix, connection or expansion network G06F13/4009 takes precedence
• CPC Class Codes: G06F 3/1438 using more than one graphics controller

Abstract

A method and apparatus for configuring multiple displays includes determining, in connection with an image or portion thereof to be displayed on the multiple displays at the same time, whether received display preferences can be fulfilled in observance of: configuration properties of the multiple displays and configuration properties of a computing system, such as the capabilities of display controllers. The method and apparatus also determine whether a current configuration of the multiple displays to the computing system can be reconfigured such that the display preferences of the multiple displays can be fulfilled at the same time while maintaining effective configuration of a current configuration when the display preferences cannot be fulfilled, and display the images of a portion thereof on the multiple displays at the same time.

Claims

1. A method for configuring multiple displays comprising:

determining, in connection with an image or portion thereof to be displayed on the multiple displays at the same time, whether received display preferences can be fulfilled in observance of;

configuration properties of the multiple displays and configuration properties of a computing system;

determining whether a current configuration of the multiple displays to the computing system can be reconfigured such that the display preferences of the multiple displays can be fulfilled at the same time while maintaining effective configuration of a current configuration when the display preferences cannot be fulfilled;

dynamically connecting differing display controllers to differing of the multiple displays for simultaneous display by the multiple displays based on determining that a current configuration of the multiple displays to the computing system can be reconfigured such that the display preferences of the multiple displays can be fulfilled at the same time while maintaining effective configuration of a current configuration; and

displaying the images or a portion thereof on the multiple displays at the same time.

2. The method of claim 1 comprising switching switches to couple differing screen memories with different display controllers to output display data to the multiple displays for simultaneous display.

3. The method of claim 1 wherein the display preferences include at least one of:

displaying an image on more than one of the displays, displaying separate images on each of the displays, displaying a portion of the image on one of the displays and displaying the image on another one of the multiple displays, providing different refresh rates for at least two of the displays, providing different resolutions for at least two of the displays, selecting one of the displays to display a predetermined type of image, and displaying a first portion of the image on a first one of the displays and displaying a second portion of the image on a second one of the displays.

7. The method of claim 1, wherein dynamically connecting differing display controllers to differing of the multiple displays comprises dynamically connecting differing display controllers with differing capabilities to differing of the multiple displays.

4. A video graphics processing apparatus for configuring a plurality of displays associated with a computing system, the apparatus comprising:

a common screen memory for multiple display controllers comprising a plurality of screen memory portions, each of the plurality of screen memory portions operative to store display data for the plurality of displays;

a plurality of display controllers, each of the plurality of display controllers operative to retrieve display data from a screen memory portion of the common screen memory and simultaneously provide the display data to at least one respective display associated with a corresponding screen memory portion; and

a control module operative to determine whether a current configuration of the multiple displays to the computing system can be reconfigured such that the display preferences of the multiple displays can be fulfilled at the same time while maintaining effective configuration of a current configuration when the display preferences cannot be fulfilled, the control module operative to dynamically connect multiple display controllers to differing of the multiple displays for simultaneous display by the multiple displays based on the control module determining that a current configuration of the multiple displays to the computing system can be reconfigured such that the display preferences of the multiple displays can be fulfilled at the same time while maintaining effective configuration of a current configuration, the control module operative to control displaying images or a portion thereof on the multiple displays at the same time.

5. The apparatus of claim 4 wherein the display preferences include at least one of:

displaying an image on more than one of the displays, displaying separate images on each of the displays, displaying a portion of the image on one of the displays and displaying the image on another one of the multiple displays, providing different refresh rates for at least two of the displays, providing different resolutions for at least two of the displays, selecting one of the displays to display a predetermined type of image, and displaying a first portion of the image on a first one of the displays and displaying a second portion of the image on a second one of the displays.

6. The apparatus of claim 5 further including a user interface operative for entering display preferences for the plurality of displays.

8. The apparatus of claim 4, wherein the control module is operative to dynamically connect multiple display controllers to differing of the multiple displays by dynamically connecting multiple display controllers with differing capabilities to differing of the multiple displays.