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Display Controller and Modes
Portégé M200 D1
Portégé M200 Version
1
Last Saved on 03/11/2003 12:04
ENGLISH using Euro_M.dot –– Printed on 03/11/2003 as IM_M20EN
Appendix D
Display Controller and Modes
Display controller
The display controller interprets software commands into hardware
commands that turn particular pels on or off.
The controller is an advanced Video Graphics Array (VGA) that provides
Super VGA (SVGA) and Extended Graphics Array (XGA) support for the
internal LCD and external monitors. The displays up to 1400 × 1050
(SXGA+). The controller also supports simultaneous display on the
internal LCD and on an external monitor.
A highresolution external monitor connected to the computer can display
up to 1600 horizontal and 1536 vertical pixels and up to 64K colours.
The display controller also controls the video mode, which uses industry
standard rules to govern the screen resolution and the maximum number
of colours that can be displayed on screen.
Software written for a given video mode will run on any computer that
supports the mode.
The computer’s display controller supports all VGA and SVGA modes, the
most widely used industry standards.
Video modes
The computer supports video modes defined in the table 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 colours and refresh rates. Also, consider the
following points:
■ If your software supports both graphics and text modes, the screen
display may appear to operate faster using a text mode.
■ The LCD’s highest graphics resolution is 1400 horizontal × 1050
vertical lines.
Portégé M200
User's Manual D-1