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[English]
PDREADME.TXT MATROX GRAPHICS INC. 2000.05.24
Matrox PowerDesk for Windows 2000
Revision 5.10.012
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 (and
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originally made for DirectX 1.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 (DirectX) 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:
- OpenGL support may not be included in some versions of Matrox PowerDesk.
For a version of Matrox PowerDesk with OpenGL support enabled, see
the Matrox Web site (www.matrox.com/mga).
- With the "Tribes" game, you may notice some minor display artifacts and
the opening video introduction may not display properly.
- Using 3D Studio Max 2.0, you may experience problems with the viewports
being improperly redrawn. If this happens, simply click in a viewport
to properly update their display. (This problem isn't present with
version 2.5 or 3.0 of 3D Studio Max.)
- DualHead Multi-Display mode under Windows 2000
If you have a DualHead-supporting graphics card and you apply "DualHead
Multi-Display" mode under Windows 2000, this version of Windows treats the
main and secondary displays of a DualHead-supporting graphics card as a
single display (which the Matrox display driver divides between two
monitors). As a result, these displays always use the same resolution and
color palette settings. Also, in your Windows desktop, the virtual positions
of these displays are always aligned next to each other.
While in DualHead Multi-Display mode with a computer monitor as your
secondary display, you can't adjust your secondary monitor with the Windows
"Monitor" or the Matrox PowerDesk "Monitor settings" property sheets. If
your secondary monitor supports Plug-and-Play (DDC), PowerDesk automatically
uses the correct maximum display resolution and refresh rate. If your
secondary monitor doesn't support Plug-and-Play, make sure that the correct
settings are selected under "Max. secondary resolution" on the Matrox
PowerDesk "DualHead" property sheet.
- Video playback with DualHead modes
If you have a a DualHead supporting graphics card and you're using DualHead
Multi-Display, Clone, or Zoom mode, digital video may appear as a solid
color on your secondary display. This can happen if video is played using
the hardware-overlay feature of your Matrox graphics card. Video played
using the overlay feature is generally of higher quality but it can be
viewed only on your main display.
Because only one program at a time can use the overlay feature, any other
program started while the overlay feature is used won't be able to use the
feature. The overlay feature will be available to the first program to
start after the program currently using the overlay is closed.
For video that normally uses the hardware-overlay feature, you may be able
to view the digital video on your secondary display by running another
instance of the video player. For example, if you're viewing a file using
the overlay feature with Microsoft Media Player, double-clicking on the file
again starts another instance of the Media Player. This instance properly
plays video on your secondary display. Then, you could close the first
instance of the Media Player and still be able to view video on your
secondary display.
- 15-bit color palette support for Windows 2000
For advanced users: By default, the 15-bit color palette is unavailable
for Windows 2000. If you need to use this color palette, you can make it
available by adding the "User.Enable15Bpp" value to your Windows registry
and then setting this value to "1". If you're adding this value, add it
under "HKEY_LOCAL_MACHINE" -> "SYSTEM" -> "CurrentControlSet" -> "Services"
-> "mgau" or "g200" or "g400" -> "Device0". The value type is "REG_DWORD".