The MGA Millennium/Mystique/MGA-G100/MGA-G200 OS/2 PM Display Driver

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README.OS2                   MATROX GRAPHICS INC.               26-Feb-1999

     The MGA Millennium/Mystique/MGA-G100/MGA-G200 OS/2 PM Display Driver

                               Version 2.23.083

Product Description


The MGA Millennium/Mystique/MGA-G100/MGA-G200 OS/2 PM driver supports 8-bit

(256 colors), 16-bit (64K colors), and 24- and 32-bit (16M colors) display

modes under OS/2 2.11 and later, in resolutions ranging from 640 x 480 to

1800 x 1440.

Driver Installation


To install the software, follow the procedure below:

   1. If you have previously configured OS/2 for another graphics card, then

      you should uninstall the drivers for that card.  Be sure that OS/2 will

      start up in VGA mode before installing the MGA

      Millennium/Mystique/MGA-G100/MGA-G200 driver.

   2. Using the Command Prompts folder of OS/2, open an OS/2 Window or Full

      Screen session.

   3. Insert the driver disk in a floppy drive (if you are installing from

      the floppy disk) or insert the CD-ROM in its drive bay.

   4. Make the CD-ROM or floppy disk the active drive and type:


      where SRCPATH is the path which contains the Matrox OS/2 drivers.


      A:\INSTALL     (if installing from a diskette with OS/2 only)

      A:\OS2\INSTALL (if installing from diskette with OS/2 and NT)

      D:\OS2\INSTALL (if installing from a CD-ROM)

      Note: if you install this driver to a Warp System, you may run

      \INSTALL /U       for all but Japanese OS/2


      \INSTALL /UJ      for Japanese OS/2 (DBCS driver disk only)

      and everything will be installed without any further input from the

      user (primary, secondary selection, driver selection, and source

      disk/path selection).

   5. You will see a dialog box in which you can select the Primary Display.

      Choose "Matrox MGA Millennium/Mystique/MGA-G100/MGA-G200 Series".  You

      may have to change the source drive if you are not installing from drive


   6. The installation program will then proceed with the installation.  When

      it is complete, you will have to shut down your system in order for the

      MGA driver to take effect.

If you haven't previously installed a high-resolution driver, OS/2 will restart

in Matrox default resolution (640x480x256).  If you know which resolutions your

monitor is capable of displaying, you may wish to configure the driver for your

monitor and/or a different resolution before shutting down.  To do this, use

the MGA Settings notebook, as explained in the next section.  However, if you

do this before shutting down, some resolutions shown by the MGA Settings

notebook may be invalid, and, if you select one of those, OS/2 will restart in

a different, valid resolution instead.

Note:  If you are using Selective Install in OS/2 Warp, the MGA

Millennium/Mystique/MGA-G100/MGA-G200 driver shows up as "Other."

Driver Configuration


To change the driver monitor configuration or mode (resolution or pixel depth),

use the following procedure:

   1. Double-click on the MGA Settings icon on the desktop.

   2. Select the Monitor tab and either select Use Display Data Channel (if

      available) or choose your monitor from the list provided.

   3. Select the Resolution tab and choose the resolution/pixel depth.

You will need to reboot the system to see the change take effect.

CID Installation


Please refer to the README.CID file on the driver disk for information

concerning CID installation.

Uninstalling the Driver


The Matrox UNINSTAL command file makes use of the OS/2 DSPINSTL.EXE program

to switch the display driver from MGA mode back to VGA mode, as shown in the

following procedure:

   1. Open an OS/2 Text Window (or Full Screen) session.

   2. Enter:  CD \MGA\OS2



      UNINSTAL CLEAN (to also delete the Matrox files from your hard disk)

   3. Once the MGA driver has been uninstalled, the DSPINSTL utility will

      launch.  Select Primary Display, then choose the driver you require (for

      example, VGA).

You will need to reboot the system to see the change take effect.

Note:  With Warp, there are two additional ways to switch the driver from MGA

mode to VGA mode:

  1. You can access a menu by pressing Alt+F1 when the OS/2 logo appears

     in the upper left corner of the screen during the bootup process.

     This menu will allow you to change the driver to VGA by selecting

     the appropriate option.

  2. You can also change the driver to VGA by running the following program

     in an OS/2 window or full screen session:


Driver Reinstallation


To reinstall the same level Matrox driver as was previously installed, run

DSPINSTL.  Select the primary display as in installation step 6 above.  Change

the source drive to \MGA\OS2 (on your boot drive), and then press the Install

button.  When DSPINSTL finishes, shut down and reboot.

Monitor Customization using Matrox's MGA Settings Notebook


The OS/2 Millennium/Mystique/MGA-G100/MGA-G200 driver supports VESA DDC-2B

compliant monitors.

If your monitor is not detected as DDC compliant, the driver will take the

"Unknown Monitor" hardcoded timings, which assume that you have a monitor

supporting all resolutions available on your board at a 60Hz refresh rate


If you have a monitor that is capable of refresh rates higher than 60Hz, you

should change the monitor setting on the Monitor page of the notebook.  If your

monitor is not listed, try to choose a similar monitor or one of the standard

monitors.  MGA Settings then creates a file called MGA.INF, which contains the

appropriate video parameters for your monitor.  The MGA.INF file is read by the

MGA display driver when OS/2 boots.

The MGA settings notebook is located in the System Setup folder, described


You must shut down OS/2 and reboot your computer for the changes to take


Note:  The timing information in MGA.INF overrides the timing info returned by

DDC compliant monitors.  If you are using a DDC compliant monitor, and you do

not wish to override the monitor's timing info, then check the "Use Data

Display Channel (DDC)" box.

Driver configuration using the MGA settings notebook


Advanced configuration of the MGA driver can be performed through the MGA

settings notebook, located in the System Setup folder and shadowed on the


Fonts page:

   You may change font settings for the current resolution, and they will be

   remembered if you switch resolutions.  You may change font resolution and

   the system font using the Fonts page.  To change the default AVIO font, open

   an OS/2 or DOS Window, select Font Size from the system menu, select the

   desired font, and click the Save button.  Your selection will be stored when

   you exit the MGA settings notebook.  Note that this is not supported with

   the DBCS driver.

   Font resolution affects the sizes of your OS/2 fonts.  The system font is

   the default font and also affects window sizes.  On Warp 4, the WarpSans

   font is used for window titles and menus.  On previous OS/2 versions, the

   window titles and menus use the default font.  If you want to change this,

   you may drag any font from the Font Palette to any window title or menu bar

   while holding the Alt key.

   Note that the default values for the fonts are:

                System Font           Font res  AVIO Font

    640x480     10.System Proportional   96        8x14

    800x600     10.System Proportional   96        8x14

   1024x768     10.System Proportional  120       12x22

   1152x864     12.System Proportional  120       12x22

     or higher

Advanced page:

1. Grayscale driver switch

   Owners of the Millennium PowerDoc Edition may enable the grayscale driver

   switch, which defines whether 8 bits per pixel should be in 256 colors or

   256 gray shades.

2. DIVE switch

   Due to an OS/2 problem in 32 bpp, the Warp Digital Video player image

   may be shifted to the left.  24 bpp may trap under certain conditions.

   The MGA Settings notebook has a switch to ensure DIVE is always enabled in

   24 and 32bpp.  Note that when the box is not checked, DIVE will still be

   used in some cases where no problems were found to occur with OS/2 Warp 3

   with FixPak 17 installed.

3. EnDIVE switch

   If you wish to enable/disable EnDIVE support, use the EnDIVE switch.

For all changes you make with the MGA setttings notebook, except for hot key

changes, you must reboot your computer to see the changes take effect.

Driver configuration using MGACONF.CMD


1. Cursor Vsync

   The cursor may exhibit some "noise" when an application changes the color

   palette.  This switch forces to wait for a Vsync before changing the

   palette.  The drawback is a loss of speed when changing the palette.  Some

   animated application requires fast changing palette.  This switch applies

   only to 8 bpp.  The problem occurs only on the Millennium card.

   mgaconf v 0      (off)

   mgaconf v 1      (on)

   Default is 1.

2. Color cursor

   mgaconf c [0/1/2],

   where 0 will enable the software cursor (multicolor cursor)

         1 will disable the software cursor (you will have 2 or fewer colors

           in the cursor)

         2 will disable the software cursor if the cursor has fewer than 4


   Default is 0.

File description


Assume: <S> -> Source path

        <D> -> Destination drive (OS/2 system drive).

        <W> -> WinOS/2 or Windows path (\os2\mdos\winos2 or \windows)

<S>\INSTALL.CMD     --> stay where it is.

<S>\FIXAUTO.CMD     --> <D>:\MGA\OS2

<S>\UNINSTAL.CMD    --> <D>:\MGA\OS2

<S>\MGAX64.OS2      --> <D>:\MGA\OS2\SYSLEVEL.MGA

   (pack file)          <D>:\MGA\OS2\MGAX64S.DSP












<S>\MGAX64W.OS2     --> <W>:\SMGAX64.DRV

   (pack file)          <W>:\MGAX64.DLL

<S>\MGAX64.DSP      --> stay where it is.

<S>\VVGA.SYS        --> <D>:\MGA\OS2 and <D>:\OS2\MDOS

<S>\MGAX64.DSC      --> <D>:\OS2\INSTALL

<S>\README.OS2      --> <D>:\MGA\OS2

MGAX64.DSP      installation support file for "dspinstl" (for first install)

MGAX64S.DSP     installation support file for "dspinstl" (for re-install)

MGAX64.DSC      installation support file

MGAX64.DLL      initialization library for Win-OS/2 fullscreen

BMGAX64.DLL     Base Video Handle (sets VGA for OS/2 fullscreen)

PMGAX64.DLL     32bit PM driver (8, 16 and 32bpp)

KMGAX64.SYS     low-level initialization for 32bit PM driver

SMGAX64.DRV     Win-OS/2 Fullscreen and Seamless driver

VMGAX64.SYS     Virtual MGA driver (for DOS sessions)

VVGA.SYS        Modified IBM VGA virtual driver.

README.OS2      Readme file

INSTALL.CMD     first time installation

MGASET.EXE      MGA Settings notebook

MGASET.DLL      MGA Settings notebook text strings

MGASET.HLP      MGA Settings notebook help

MGAHK.EXE       hot key trapping applet

MGACONF.CMD     Configuration utility for PM driver

FIXAUTO.CMD     inserts "SET MGA=x:\MGA\OS2" in autoexec.bat (Win-OS/2)

UNINSTAL.CMD    uninstalls driver (and optionally removes all

                Millennium/Mystique/MGA-G100/MGA-G200 files from hard drive)

MGA.MON         MGA Monitor data file for MGA settings notebook

SETUP.EXE       Monitor program to create MGA.INF out of MGA.MON

SYSLEVEL.MGA    driver Version info

                (use OS/2 command syslevel.exe to obtain the driver Version)

MGAOBJ.CMD      MGA object installation



The following bugs and limitations are present in this release of the


?When using the DSPINSTL program to reconfigure your MGA driver, the program

  states that VGA is the current driver.  This is because the DSPINSTL program

  included with OS/2 does not correctly identify the Matrox


?The MGA PowerDesk Windows drivers should NOT be used in a Win-OS/2 full

  screen session.  The results will be highly unpredictable.  If the MGA

  windows driver features are absolutely needed, then a dual-boot configuration

  must be used.  When booting from DOS, the PowerDesk Windows driver features

  are fully supported.

?The driver does not work with Mayo Clinic Family Health Book (Windows app.)

  in seamless Windows at 16bpp (64K colors).  If you need to run this

  application, please run it in Win-OS/2 fullscreen instead or change the

  colors to 256 or 16M.

?It is necessary to shut down all Win-OS/2 sessions prior to installing the

  driver.  Make sure the "Fast load" option in Win-OS/2 Setup (in the System

  Setup folder) is not checked, and close Win-OS/2 Setup prior to install.

  Otherwise, required Win-OS/2 files will not be copied, and install will fail.

?Using the large OS/2 system font on OS/2 2.11 causes some text in the MGA

  settings notebook to be cut off.  This is due to an OS/2 bug in the font


?Selecting a scalable font as the OS/2 system font on OS/2 2.11 and Warp 3

  without a FixPak does not work correctly.  A system proportional font is used

  instead.  You can obtain a list of scalable fonts by opening the Font

  Palette, pressing the Edit Font button, and pressing the Delete button.

  In the Delete Font window, any font with file extension OFM is a scalable

  font.  Warp 3 FixPak 17 is known to fix this problem.

?Using MGA Settings to select the OS/2 system font is not supported with the

  DBCS driver.

?When using higher than 1280x1024 resolution, if you use MGA Settings to

  change the monitor setting to a monitor which does not support the current

  resolution, you must shut down the system prior to switching to a full screen

  session.  Otherwise, the system will hang when switching back to the desktop.


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