Sampson

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PDREADME.TXT MATROX GRAPHICS INC. 2001.01.18

Matrox PowerDesk for Windows 2000

Revision 5.32.010

Contents

========

- Description of this release

- Installation

- More information

- Notes, problems, and limitations

Description of this release

===========================

Matrox PowerDesk software includes a display driver and display

utilities. With this software, you can take full advantage of your

Matrox graphics hardware and you can access additional Matrox

display-related features.

Installation

============

To install Matrox PowerDesk, start the "setup" program included

with it, then follow the on-screen instructions.

The setup program will only install software if a Matrox graphics

card model supported by the setup program is installed in your

computer.

More information

================

For more information on Matrox PowerDesk, see the help file

included with it. For information specific to your Matrox

graphics card, see your Matrox or system manual.

Notes, problems, and limitations

================================

- DirectDraw, Direct3D and DirectVideo support

The DirectDraw driver we provide is compatible with DirectX 2

(or later) and includes Direct3D support. For our

DirectDraw/Direct3D driver to be called, and benefit from

hardware acceleration, Microsoft DirectX 2 (or later) MUST be

installed, even for programs originally made for DirectX 1.

Also, if a recent version of DirectX isn't installed, some Matrox

PowerDesk features may not be available.

We provide DirectX on the Matrox CD-ROM. The latest DirectX is

available from the Microsoft Web site, and is included with many

DirectX programs.

IMPORTANT: If the DirectX setup program prompts you to replace

the existing display drivers, click "No". Otherwise, the setup

program installs display drivers which are not as optimized as

the Matrox drivers and which do not support PowerDesk software.

Note that depending on the origin of your Microsoft DirectX

software, it may not include DirectVideo support. For faster

playback of Indeo and Cinepak AVI files, you should install

Microsoft DirectVideo support.

- Matrox bus mastering

This driver supports bus mastering. Bus mastering is a feature

that allows expansion cards to perform tasks at the same time as

your computer's CPU. If you have a fast Pentium computer (faster

than 166 MHz), the display performance of most programs is

improved when bus mastering is used.

To use bus mastering with 3D (Direct3D/OpenGL) programs, your

graphics card needs an interrupt request (IRQ). Most computers

automatically assign an IRQ to graphics cards, but some do not.

If your graphics card hasn't been assigned an IRQ, programs that

use Matrox bus mastering may not work properly. For more

information, see your Matrox or system manual.

- DirectDraw and Automatic Power Management

As stated in "Microsoft DirectX Release Notes", September 30,

1995, a DirectDraw game may be unable to restore properly if it

is suspended by Automatic Power Management utilities.

- Installation in different language versions of Windows

If you install software in a language different from the language

of your operating system (for example, English software on a

Japanese system), you may have problems with text and dialog box

controls being cut off. This is because of differences in system

fonts.

- OpenGL support

Note the following limitations related to the OpenGL driver

included with Matrox PowerDesk:

- If you have a newer Matrox product or your Matrox software

was provided by the manufacturer of your computer, full

OpenGL support may be disabled with your Matrox display