explanatory Essay
1123 words
1123 words


Matrox PowerDesk for Windows 2000
Revision 5.32.010


- 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.


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be called, and benefit from hardware acceleration, Microsoft DirectX 2 (or later) MUST be installed, even for programs originally made for DirectX 1.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,

In this essay, the author

  • Explains that the matrox powerdesk for windows 2000 software includes a display driver and displayutilities.
  • Explains how to install matrox powerdesk. the setup program only installs software if a matrox graphicscard model is installed in yourcomputer.
  • Explains that matrox's directdraw driver is compatible with directx 2(or later) and includes direct3d support.
  • Explains that if a recent version of directx isn't installed, some matroxpowerdesk features may not be available.
  • Recommends installing microsoft directvideo support for faster playback of indeo and cinepak avi files. matrox drivers support bus mastering.
  • Explains that if you have a fast pentium computer, the display performance of most programs isimproved when bus mastering is used.
  • Explains that matrox bus mastering may not work properly. directdraw and automatic power management may be suspended by automatic power management utilities.
  • Explains that if you have a newer matrox product, you may have problems with text and dialog box controls being cut off because of differences in systemfonts.
  • Explains that opengl support may be disabled with your matrox displaydriver.
  • Explains that if you use 3d studio max 2.0, you may experience problems with theviewports being improperly redrawn. this problem isn't present with version 2.5 (or later).
  • Explains that windows treats the main and secondary displays of a dualhead-supporting graphics card as one display, which the matroxdisplay driver divides between two monitors.
  • Explains that if your secondary monitor supports plug-and-play (ddc), powerdesk automatically uses the correctmaximum display resolution and refresh rate.
  • Explains the matrox powerdesk 'quot;dualhead'' property sheet. if you're using dual-screen multi-display, clone, or zoom mode, digital video may appear as a solid color on your secondary display.
  • Explains that only one program at a time can use the overlay feature, so other programs won't be able to use it.
  • Explains that if you're viewing a file using the overlay feature with microsoftmedia player, double-clicking on it again starts another instance of the media player.
  • Explains that when viewing video with a tv using the dualhead dvdmax feature, you may notice occasionnal jerky video playback (droppedframes).
  • Explains that if you need to use this colorpalette, you can make it available by adding the 'user.enable15bpp' value to your windows registry.
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