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Appendix b - display controller and modes, Appendix b, Display controller and modes – Toshiba Satellite U200 User Manual

Page 197: Dix b, Display, Controller and modes, Display controller, Video modes

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User’s Manual

B-1

Appendix B

Display Controller and Modes

Display controller

The display controller interprets software commands into hardware

commands that turn particular parts on the screen on or off.
As indicated below, there are two types of video modes.

Intel

®

945GM model supports up to 2048 horizontal × 1536 vertical

pixels.

Intel

®

940GML model supports up to 1920 horizontal × 1440 vertical

pixels.

Refer to the table on the next page which describes in detail supported

video modes.

The display controller also controls the video mode, which uses industry

standard rules to govern the screen resolution and the maximum number of

colors that can be displayed on screen.
Software written for a given video mode will run on any computer that

supports the mode.

Video modes

The computer supports video modes defined in the tables below. If your

application offers a selection of mode numbers that do not match the

numbers on the table, select a mode based on mode type, resolution,

character matrix, number of colors and refresh rates. Also, if your software

supports both graphics and text modes, the screen display may appear to

operate faster using a text mode.

Because of the LCD’s increased resolution, lines may appear broken in

DOS mode.