Method and system for setting display resolution

• US 8,441,474 B2
• Filed: 06/23/2009
• Issued: 05/14/2013
• Est. Priority Date: 06/25/2008
• Status: Active Grant

• Current Assignee: Aristocrat Technologies Australia PTY Limited (Aristocrat Leisure Limited)
• Original Assignee: Aristocrat Technologies Australia PTY Limited (Aristocrat Leisure Limited)
• Inventors: Nedeljkovic, Petar, Tomicic, Zoran, Gerrone, Peter John
• Primary Examiner(s): Nguyen, Phu K
• Application Number:
  US12/489,840
• Publication Number:
  US 20090322803A1
• Time in Patent Office: 1,421 Days
• Field of Search: 345/418, 345/428, 345/581
• US Class Current: 345/418
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2370/047 using display data channel standard [DDC] communication
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

A computing system with a graphical windowing server displaying to a display, and a method for setting the resolution of a display to which a computing device displays. The method comprises running a graphical windowing server with a digital connection enabled between the display and a graphics adapter for the display, querying the display with the digital connection for display modes supported by the display, receiving returned mode data, the mode data being indicative of one or more display modes supported by the display, shutting down the graphical windowing server, composing a modeline for the display according to the returned mode data and a desired resolution, running the graphical windowing server with the digital connection disabled and the modeline, and loading a graphics specification corresponding to the resolution indicated by the modeline.

Claims

1. A method of setting the resolution of a display to which a computing device with a graphical windowing server displays, comprising:

running the graphical windowing server with a digital connection enabled between the display and a graphics adapter for the display;

querying the display with the digital connection for display modes supported by the display;

receiving returned mode data, said mode data being indicative of one or more predefined display modes supported by the display;

shutting down the graphical windowing server;

selecting a modeline from a plurality of modelines for the display according to the returned mode data and a desired resolution, wherein each modeline is associated with one of the predefined display modes supported by the display;

running the graphical windowing server with the digital connection disabled and the selected modeline; and

loading a graphics specification corresponding to the resolution indicated by the predefined modeline.

2. The method as claimed in claim 1, and wherein the graphical windowing server comprises an X based graphical window server, the digital connection comprises a Display Data Channel and the graphics specification is contained in an Xresources file.

3. The method as claimed in claim 1, and further comprising selecting the desired resolution according to a resolution or resolutions identified by the returned mode data.

4. The method as claimed in claim 1, and wherein selecting the modeline comprises modifying a resolution identified by the returned mode data according to the desired resolution.

5. The method as claimed in claim 1, and wherein the mode data comprises a modeline or modelines.

6. The method as claimed in claim 1, and wherein querying the display comprises controlling the graphical windowing server to query the display with the digital connection.

7. The method as claimed in claim 1, and wherein the graphical windowing server comprises an X based graphical window server, the digital connection comprises a Display Data Channel and the graphics specification is contained in an Xresources file, and wherein querying the display comprises controlling the X based graphical window server to query the display with the Display Data Channel by executing an xrandr utility program.

8. The method as claimed in claim 1, and further comprising saving the returned modeline data.

9. The method as claimed in claim 1, and further comprising writing the returned modeline data to a file.

10. The method as claimed in claim 1, and further comprising conducting a search of the returned mode data for data indicative of one or more supported or desired graphics standards or resolutions.

11. The method as claimed in claim 10, and wherein the one or more graphics standards or resolutions comprises VGA.

12. The method as claimed in claim 10, and wherein the one or more graphics standards or resolutions comprises a number of columns.

13. The method as claimed in claim 10, and wherein the one or more graphics standards or resolutions comprises a number of rows.

14. The method as claimed in claim 1, and wherein loading the graphics specification comprises controlling the graphical windowing server to load the graphics specification.

15. The method as claimed in claim 1, and wherein the graphical windowing server displays to a plurality of different displays, and the method comprises setting the resolution of each of the plurality of displays to respective different resolutions.

16. The method as claimed in claim 1, and wherein the graphical windowing server displays to a plurality of different displays, and the method comprises setting the resolution of each of the plurality of displays to an identical resolution.

17. A computing system with a graphical windowing server displaying to a display, the computing system arranged to:

run the graphical windowing server with a digital connection enabled between the display and a graphics adapter for the display;

query the display with the digital connection for display modes supported by the display;

receive returned mode data, said mode data being indicative of one or more predefined display modes supported by the display;

shut down the graphical windowing server;

select a modeline from a plurality of modelines for the display according to the returned mode data and a desired resolution, wherein each modeline is associated with one of the predefined display modes supported by the display;

run the graphical windowing server with the digital connection disabled and the new selected modeline; and

load a graphics specification corresponding to the resolution indicated by the new predefined modeline.

18. The computing system as claimed in claim 17, and wherein the graphical windowing server comprises an X based graphical windowing server, the digital connection comprises a Display Data Channel and the graphics specification is contained in an Xresources file.

19. The computing system as claimed in claim 17, and wherein the computing system is arranged to conduct a search of returned mode data for data indicative of one or more desired or supported graphics standards or resolutions.

20. The computing system as claimed in claim 17, and further comprising a gaming machine.