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- README.NT MATROX GRAPHICS INC. December 19, 1995
-
- Matrox MGA Millennium
- Drivers for Windows NT 3.5/3.51
- on x86 CPUs
- Rev. 1.20.038 (3.5.38)
-
- History
- ~~~~~~~
- Rev. 1.20 (3.5.38) Miniport: updated to SXCIEXT Build 27.
- User-mode: modified pan&zoom initialization.
-
- Rev. 1.20 (3.5.37) Miniport: fix for SyncOnGreen on multiple monitors;
- fix in mode list when 3D modes unavailable;
- identification of DigiMix boards.
- User-mode: FrameBufferMapping returned in BOARD_INFO;
- new definition for WaitNotBusy;
- limited use of AUTOLINE.
-
- Rev. 1.20 (3.5.36) Miniport: updated SXCIEXT code to Build 22.
- User-mode: code for MTX_PROGRAMVLINEINT,
- MTX_WAITVSYNC.
- 3D-DDI: hardware-accelerated OpenGL on multiple
- boards (Build 12).
-
- Rev. 1.11 (3.5.35) User-mode: support for MTX_QUERYDRIVERVERSION.
-
- Rev. 1.11 (3.5.34) User-mode: MAKE_BOARD_CURRENT before getting HwData;
- MEMORY_BARRIER in vAssertModePointer.
-
- Rev. 1.11 (3.5.33) Miniport: support for MTX_QUERYCURRENTMODEDESC.
- User-mode: support for MTX_QUERYCURRENTMODEDESC;
- handling 0 edge case in bFastFill.
-
- Rev. 1.11 (3.5.32) Miniport: added code for new flag AlternateLines.
- User-mode: added code for new flag AlternateLines.
-
- Rev. 1.11 (3.5.31) Same as Rev. 1.11.030, with CheckFifoSpace enabled.
-
- Rev. 1.11 (3.5.30) Miniport: added code for new flags CheckFifoSpace,
- AccelComplexRops.
- User-mode: added code for new flags CheckFifoSpace,
- AccelComplexRops;
- added small delay in pointer shape
- download.
-
- Rev. 1.11 (3.5.29) Experimental build.
- Miniport: added code to detect MediaXL add-on.
- User-mode: added code to allocate tag ram for Media XL.
- modified code to accelerate integer lines.
-
- Rev. 1.11 (3.5.28) Miniport: added code for 3D on multiple boards.
- User-mode: added code for 3D on multiple boards.
-
- Rev. 1.11 (3.5.27) This version is based on Rev. 1.10.024.
- Miniport: added code to support new Escapes.
- User-mode: added code to support new Escapes;
- accelerated line drawing code for integer
- endpoints.
-
- Rev. 1.11 (3.5.26) This version is based on Rev. 1.10.024.
- Miniport: modified code written for MediaXL;
- removed check on Option register bits;
- added code to compute actual refresh rate;
- added code to support new Escapes.
- User-mode: added code to support new Escapes.
-
- Rev. 1.11 (3.5.25) This version is based on Rev. 1.10.024.
- Miniport: modified return value from ReadSystemBios.
-
- Rev. 1.10 (3.5.24) This version is based on Rev. 1.10.023.
- Miniport: modified to blank out all VGA-disabled
- boards after DDC check.
- User-mode: modified multi-screen clipping for text;
- modified clipping for FromScreen blting;
- modified source coordinates for
- ScreenToScreen punting.
-
- Rev. 1.10 (3.5.23) This version is based on Rev. 1.10.022.
- Miniport: support for multiple DDC monitors;
- modified DCI code;
- correct programming of MACCESS.
- User-mode: multi-screen clipping for text.
-
- Rev. 1.10 (3.5.22) This version is based on Rev. 1.10.020.
- Miniport: modified to build list of modes that
- includes both 2D and 3D modes.
- User-mode: modified offscreen heap management.
- 3D-DDI: fixed RXCMD_READ_RECT.
-
- Rev. 1.04 (3.5.21) This version is based on Rev. 1.03.018.
- Miniport: corrected ScanSDA parameter in DDC code.
-
- Rev. 1.10 (3.5.20) Miniport: added support for refresh rates;
- added support for DCI;
- modified the code so that the Registry
- HardwareInformation is updated for every
- board detected.
-
- User-mode: optimized driver, mostly based on the S3
- code supplied with the Windows NT 3.51 DDK,
- including support for device bitmaps and
- DCI;
- added code to support user-selected values
- from the Registry.
-
- 3D-DDI: optimized RXCMD_SWAP_BUFFERS command;
- optimized RXCMD_FILL_RECT command;
- fixed RXCMD_WRITE_RECT to Z buffer.
-
- Rev. 1.10 (3.5.19) User-mode: modified bltmod to BFCOL when writing 32bpp;
- removed masking when reading 16/32bpp;
- modified PlnWt at 15bpp;
- modified Build number.
- 3D-DDI: optimized triangle primitives;
- removed WaitFIFO macros;
- adapted to fully support OpenGL on the final
- version of NT 3.51, Build 1057.
-
- Rev. 1.03 (3.5.18) User-mode: modified offset convention in FastFill;
- modified Build number.
-
- Rev. 1.10 (3.5.17) Miniport: added Int10 call in RESET_DEVICE
- User-mode: modified Build number.
-
- Rev. 1.02 (3.5.16) Miniport: added Int10 call in RESET_DEVICE
- User-mode: modified Build number.
-
- Rev. 1.10 (3.5.15) Miniport: updated FindAdapter.
- User-mode: added MTX_QUERYPITCH escape code;
- modified Build number.
-
- Rev. 1.02 (3.5.14) Miniport: updated FindAdapter.
- User-mode: added MTX_QUERYPITCH escape code;
- modified Build number.
-
- Rev. 1.10 (3.5.13) Miniport: updated FindAdapter routine for systems
- with PCI bridges.
-
- Rev. 1.02 (3.5.12) Miniport: updated FindAdapter routine for systems
- with PCI bridges.
-
- Rev. 1.10 (3.5.11) Added 3D DLL (DDIRX.DLL).
-
- Rev. 1.02 (3.5.10) Miniport: updated FindAdapter routine;
- new and improved PCI access routines;
- added services for 3D DDI;
- User-mode: added back complex rop3 support;
- fixes in blt routines;
- added entry points for 3D DDI;
- modified Build number.
-
- Rev. 1.02 (3.5.09) Miniport: updated low-level code;
- added DPMS code;
- adapted for TVP3030;
- adapted for Alpha AXP.
- User-mode: added DPMS and DDC entry points;
- removed complex rop3 support;
- optimized write and read macros;
- adapted for TVP3030;
- adapted for Alpha AXP;
- modified Build number.
-
- Rev. 1.02 (3.5.08) Experimental build.
-
- Rev. 1.01 (3.5.07) User-mode: modified Build number.
- New MGA.MON file.
-
- Rev. 1.01 (3.5.06) Miniport: fixed VGA trashing by mtxCheckHwAll;
- added default build of list of modes;
- added DDC support.
- User-mode: added DrvFillPath support;
- modified cache limit for fonts;
- modified Build number.
-
- Rev. 1.00 (3.5.05) Miniport: modified YDstOrg computation.
- User-mode: modified full clipping limit;
- modified Build number.
-
- Rev. 1.00 (3.5.04) Miniport: updated low-level code; added code to
- validate PCI mechanism before any access,
- since some drivers use undocumented
- features to modify the access method.
- User-mode: modified Build number.
-
- Rev. 1.00 (3.5.03) Miniport: added mechanism 1 in PCI search.
- User-mode: modified Build number.
-
- Rev. 1.00 (3.5.02) Miniport: small change in MGA.C.
- User-mode: modified Build number.
-
- Rev. 1.00 (3.5.01) Miniport: updated with latest low-level code;
- modified Chip and Adapter strings.
- User-mode: modified Build number.
-
- Rev. 1.00 (3.5.00) Initial version.
-
-
- Windows NT Files on this Disk
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- \MGAX64.TAG Tag file for Windows NT Setup
- \MGAX64.SYS MGA Millennium miniport driver
- \MGAX64.DLL MGA Millennium user-mode driver
- \OEMSETUP.INF MGA Millennium driver installation file for Windows NT
- \TXTSETUP.OEM MGA Millennium driver installation file for Windows NT
-
- \MGA.MON MGA monitor file
- \MGASET.CPL Monitor selection applet for Control Panel
- \MONDLG.DLL DLL required by the Monitor selection applet
- \DDIRX.DLL MGA Millennium 3D-DDI driver
-
- \README.NT This file
-
-
- About These Drivers
- ~~~~~~~~~~~~~~~~~~~
- These drivers support 2, 4, and 8Mbytes MGA Millennium boards. Multiple
- boards are also supported. The drivers, together with the 3D-DDI DLL,
- also support hardware-accelerated 3D.
-
-
- Installation
- ~~~~~~~~~~~~
- Refer to your MGA Millennium Owner's Manual to install your board in your
- system.
-
- If you are installing two MGA Millennium boards in your system, please note
- that only one should be VGA-enabled through the on-board switch. Dual-
- board installations are similar to single-board installations. The
- system will automatically assign separate addresses to each PCI board,
- allowing the driver to issue commands to each board. In a dual-board
- configuration, both boards must run with the same resolution and pixel
- depth (number of colors). The VGA-enabled board will drive the top left
- monitor.
-
- The general procedure for changing a display driver is the following:
-
- - Open the ControlPanel/Display applet.
-
- - Press the 'Change Display Type...' button.
-
- - In the Display Type dialog box, press the 'Change...' button.
-
- - In the Select Device dialog box, press the 'Other...' button.
-
- - In the Install From Disk dialog box, type the location of the
- Matrox MGA Millennium installation files (e.g. "A:\WINNT").
-
- - From the displayed list, select a resolution and pixel depth
- supported by your board and monitor, then press 'Install'.
- Modes requiring 4 or 8 MBytes are called out in the displayed list.
- Dual-board modes are not available at driver installation time,
- since the number of installed boards cannot be determined at
- this time.
-
- - Answer 'Yes' to the Installing Driver dialog box.
-
- - If the MGA Millennium drivers are already installed on your system,
- you will be prompted to choose between the currently installed
- drivers or new ones. If you select 'New', you will be prompted
- for the path to the new driver files. This will default to the
- path entered in the Install From Disk dialog box.
-
- - In the Display Settings Change dialog box, you should select
- 'Restart Now' so that the new settings take effect.
-
- - If your system does not reboot at the expected resolution, it is
- probable that your board does not support the selected resolution/
- pixel depth combination. Open ControlPanel/Display again and press
- the 'List All Modes...' button to get all the modes available for
- your particular board. You can also experiment with the 'Color
- Palette' and 'Desktop Area' controls to select a new mode. Use
- the 'Test' button to make sure that the new mode is supported by
- your monitor.
-
-
- Changing Resolution
- ~~~~~~~~~~~~~~~~~~~
- Whenever you want to change resolution, run the ControlPanel/Display applet.
- The available modes are displayed through the 'List All Modes...' button.
-
- If you are using a dual-screen configuration, the driver will spread the
- desktop over the two monitors. Special dual-screen resolutions will be
- listed, where the horizontal or vertical resolutions are twice their
- normal size. Selecting one of these resolutions will permit testing of
- both monitors.
-
-
- Monitor Customization
- ~~~~~~~~~~~~~~~~~~~~~
- There are two ways to select refresh rates for your monitor. Whenever
- a new driver is installed, it is assumed that refresh rates are selected
- through the ControlPanel/MGA Monitor applet. If your preference goes to
- selecting refresh rates through the 'Refresh Frequency' field of the
- ControlPanel/Display applet, you will have to edit a value in the Registry.
- Both options are described below. The section 'Editing the Registry' gives
- details on how to modify the values that control driver behavior.
-
- After installation, the display driver assumes that refresh rates will be set
- through the MGA Monitor applet. However, since the applet has not been run
- yet, the driver will assume that your monitor is capable of handling all
- resolutions from 640x480 up to 1600x1200 at a 60 Hz refresh rate. If your
- monitor does not support the higher resolutions, or if it is capable of
- higher refresh rates, you can run the ControlPanel/MGA Monitor applet and
- select a suitable monitor from the list. This will ensure that your monitor
- will not be over-driven, and that you will get the benefits of higher refresh
- rates.
-
- The MGA Monitor applet should have been copied by the Windows NT Setup
- program into your SystemRoot\SYSTEM32 subdirectory when the MGA Millennium
- drivers were installed. To customize your monitor:
-
- - Open the ControlPanel/MGA Monitor applet.
-
- - If your monitor supports DDC (Display Data Channel), a dialog box
- will allow you to exit without creating an MGA.INF file. If you
- decide to create an MGA.INF file, its settings will override the
- capabilities provided by your monitor through the DDC.
-
- - From the list of monitors, select the appropriate monitor, or one
- whose maximum refresh rate matches the one you are using. An
- MGA.INF file will be created in the SystemRoot\SYSTEM32
- subdirectory.
-
- To make sure that the newly created MGA.INF is correct for your monitor:
-
- - From Control Panel, start the Display applet.
-
- - Select the resolution and pixel depth you wish to test.
-
- - Press the 'Test' button. The test will use the video parameters
- appropriate for the monitor selected in MGA Monitor.
-
- If your monitor does not display a stable test screen, then the parameters
- set by MGA.INF are not suitable for your monitor. Press the 'Cancel' button
- to close Display, run MGA Monitor again to select another monitor from the
- list, and repeat the Display test.
-
- If the test screen is not displayed, but you get instead a message box about
- the screen not being visible due to a limitation of your video card or
- display monitor, then it is probable that the tested resolution (say,
- 1280 x 1024) was above the limit set by MGA.INF (say, 1024 x 768). If your
- monitor is capable of the higher resolution, then run MGA Monitor again to
- select an appropriate monitor.
-
- The new MGA.INF will take effect when you restart Windows NT. Any resolution
- higher than the set limit will not appear in the Display applet mode list.
- Deleting MGA.INF will remove all monitor limits to the resolution, although
- the refresh rate will default to 60Hz.
-
- In a dual-board configuration, both boards will output the same refresh
- rate to each monitor. It is recommended that the monitor selected in MGA
- Monitor be compatible with the less capable monitor in your setup.
-
- If you would rather select refresh rates through the ControlPanel/Display
- applet, set the 'User.MgaInfoFile' value in the Registry to 0 (see the
- 'Editing the Registry' section for details). The next time you reboot,
- refresh rates available for each mode will be returned to the Display
- applet. The system will probably reboot in the 640x480x8 mode, and a
- warning message will be displayed. This is normal, since the system could
- not find the hardware default setting that was used previously for refresh
- rates. You can now select refresh rates from the list displayed by
- ControlPanel/Display. You should test any new mode to make sure that your
- monitor actually supports the new resolution/refresh rate combination.
-
- In a dual-board configuration, both boards will output the same refresh
- rate to each monitor. The less capable monitor in your setup will determine
- the maximum refresh rate.
-
-
- Editing the Registry
- ~~~~~~~~~~~~~~~~~~~~
- Information held in the Windows NT Registry can have a direct effect on the
- whole system. Introducing incorrect values can cause serious problems and
- may make it necessary to reinstall Windows NT. The changes outlined below
- should have effects limited to the MGA Millennium drivers. However, if you
- accidentally modify values that make your system unusable, please note that
- it is often possible to undo the damage by using the 'Last Known Good
- Configuration' option at boot time.
-
- Modifying keys and values in the Registry is done through the Registry
- Editor. The Registry Editor can be invoked in the following way:
-
- - Open a Command Prompt window.
-
- - Type 'regedt32'. The Registry Editor will come up.
-
- To modify the values that govern the behavior of the MGA Millennium driver:
-
- - Select the HKEY_LOCAL_MACHINE window.
-
- - Travel down to the key named:
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mgax64\Device0.
-
- In the right window pane, you will find many values. Three of these control
- the use of 3D-accelerated modes. They are described in the 'Hardware-
- accelerated 3D' section. They are:
- User3D.DoubleBuffer,
- User3D.ZBuffer, and
- User3D.SubPixel.
-
- Seven values control the general behavior of the driver:
-
- User.AlternateLines when set to 1, allows lines defined by integer coordinates
- to be drawn using the faster AUTOLINE opcode of the
- drawing engine. The convention used to determine which
- pixels contribute to a given line is slightly different
- in AUTOLINE and in Windows NT. Setting AlternateLines
- to 1 trades off compliance with the Windows NT conventions
- for performance. A value of 0 will enforce compliance.
- Lines defined by non-integer endpoint coordinates are not
- affected by this setting.
-
- The default value of User.AlternateLines is 0.
-
- User.CenterDialogs when set to 1, allows centering of dialog boxes and
- pop-up windows on the top left display of a dual-screen
- setup. The centered windows can still be moved over the
- whole desktop. A value of 0 will have no effect on the
- position of these windows.
-
- There are serious side-effects to this feature. For
- instance, testing a dual-screen mode from the
- ControlPanel/Display applet will actually test only the
- corresponding single-screen mode. Other side-effects
- include toolbars that will not use the whole desktop, and
- screen savers that will work only on the top left screen.
-
- The default value of User.CenterDialogs is 0.
-
- User.ComplexBlt when set to 1, allows the driver to accelerate some
- complex raster operations (ROPs) by executing a sequence
- of simple ROPs (ORing, ANDing, etc...). A value of 0
- will result in complex ROPs being performed in software.
-
- The complex ROPs are performed directly on the display
- through a succession of simple ROPs. Artifacts (flashing)
- in the target display area may become visible when an
- intermediate result in video RAM is displayed on a given
- refresh cycle, to be replaced by the final image on the
- next cycle.
-
- The default value of User.ComplexBlt is 1.
-
- User.DeviceBitmaps when set to 1, allows use of off-screen memory for
- caching bitmaps. This will allow the hardware to
- accelerate drawing to bitmaps. A value of 0 disables
- bitmap caching, allowing the CPU to draw onto all
- bitmaps. Bitmap caching is internally disabled when
- a desktop requiring more than one board is in use,
- regardless of the Registry setting.
-
- The default value of User.DeviceBitmaps is 1.
-
- User.MgaInfoFile when set to 1, allows use of the MGA Monitor applet
- to control refresh rates. A value of 0 will allow the
- Display applet to list available refresh rates. See
- the 'Monitor Customization' section for more details.
-
- The default value of User.MgaInfoFile is 1.
-
- User.SynchronizeDac when set to 1, will require the driver to wait for a
- vertical sync before programming the ramdac with a new
- pointer shape or a new palette. If you notice stray
- pixels flashing around the pointer, setting this flag
- to 1 might fix the problem. Setting it to 0 will result
- in slightly better performance.
-
- The default value of User.SynchronizeDac is 0.
-
- User.SynchronizeEngine when set to 1, will require the driver to wait for
- the Millennium hardware to be ready to accept new data
- before programming the next operation. Setting it to 0
- will result in better performance.
-
- On most x86-based systems, the PCI logic should ensure
- that such a check is redundant. If you're experiencing
- problems that might be related to timing (with
- communication programs, for instance), setting this value
- to 1 may be of help.
-
- The default value of User.SynchronizeEngine is 0.
-
- If you wish to change any of these values:
-
- - Double-click on the selected value.
-
- - In the DWORD Editor, change the value to '0' or '1'. The new value
- will take effect the next time you reboot.
-
-
- Hardware-accelerated 3D
- ~~~~~~~~~~~~~~~~~~~~~~~
- The DDIRX.DLL file supplied with the MGA Millennium drivers allows for
- hardware-accelerated 3D, with a few restrictions:
-
- - Hardware-accelerated 3D is available only for Windows NT 3.51.
-
- - The 3D DLL does not support 8bpp (256 colors) modes. These modes
- use an index-based color scheme, which does not lend itself to 3D
- acceleration, instead of the RGB color representation of higher-
- color modes. RGB-based displays are generally unsatisfactory when
- limited to 256 colors. Modes identified as '16777216 Colors' are
- 24bpp modes and do not support 3D acceleration, as opposed to 'True
- Color' modes, which are 32bpp modes that can accelerate 3D drawing.
-
- - Limitations to the available resolutions are to be expected. All
- 3D modes require extra memory to handle double buffering and/or Z
- buffering, and this memory is no longer available for display.
-
- The DDIRX.DLL file will have been copied into the SystemRoot\SYSTEM32
- subdirectory when the MGA Millennium drivers were installed. Also, three
- values will have been created in the Registry under the key:
-
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mgax64\Device0.
-
- These values are User3D.DoubleBuffer, User3D.ZBuffer, and User3D.SubPixel.
- They were initialized to one, effectively enabling 3D acceleration for those
- combinations of resolution and pixel depth that can support it on your
- board. These values can be modified through the Windows NT Registry Editor
- (regedt32.exe). The procedure for modifying value entries is straightforward,
- and is described in the 'Editing the Registry' section and in the Registry
- Editor help. New Registry settings take effect only after a system reboot.
-
- The functions controlled by the User3D values are as follows:
-
- User3D.DoubleBuffer when set to 1, allows a back buffer to be allocated
- from the MGA Millennium memory. It should be set to
- 0 if no back buffer is required.
-
- This value should be set to 1 if 3D animation is to
- be fully accelerated.
-
- User3D.ZBuffer when set to 1, allows a Z buffer to be allocated from
- the MGA Millennium memory. It should be set to 0 if
- no Z buffer is required.
-
- This value should be set to 1 if 3D rendering is to
- be fully accelerated.
-
- User3D.SubPixel when set to 1, allows the 3D-DDI driver to perform
- rendering with sub-pixel precision. It should be
- set to 0 otherwise.
-
- This value should be set to 1 if high quality 3D
- rendering is to be performed. Faster rendering can
- be achieved by setting the value to zero, although
- some artifacts may then appear near objects boundaries.
-
- The values User3D.DoubleBuffer and User3D.ZBuffer will be read from the
- Registry and their settings will be taken into account when building the
- list of available modes. If both values are set to zero, only normal (N)
- modes will be selected. Other settings will allow Z-buffering (Z), double-
- buffering (DB), or both (DBZ). Valid combinations of resolution and pixel
- depth that do not support 3D acceleration will be available as normal modes,
- so that all valid resolutions will appear once, and only once, in the list
- of available modes in the ControlPanel/Display applet. Display does not
- provide any way to specify the 3D capabilities of a given mode. After
- installation, all available DBZ modes are enabled, and the remaining modes
- are N modes.
-
- The available modes depend on the amount of WRAM installed on your board.
- They are:
-
- For 2MBytes boards:
-
- | | 8bpp | 15bpp | 16bpp | 24bpp | 32bpp |
- +-------------+------+------------+------------+-------+------------+
- | 640 x 480 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z |
- | 800 x 600 | N | N,Z,DB | N,Z,DB | N | N |
- | 1024 x 768 | N | N | N | - | - |
- | 1152 x 882 | N | N | N | - | - |
- | 1280 x 1024 | N | - | - | - | - |
- | 1600 x 1200 | N | - | - | - | - |
-
- For 4MBytes boards:
-
- | | 8bpp | 15bpp | 16bpp | 24bpp | 32bpp |
- +-------------+------+------------+------------+-------+------------+
- | 640 x 480 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z,DB,DBZ |
- | 800 x 600 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z,DB |
- | 1024 x 768 | N | N,Z,DB | N,Z,DB | N | N |
- | 1152 x 882 | N | N,Z,DB | N,Z,DB | N | N |
- | 1280 x 1024 | N | N | N | N | - |
- | 1600 x 1200 | N | N | N | - | - |
-
- For 8MBytes boards:
-
- | | 8bpp | 15bpp | 16bpp | 24bpp | 32bpp |
- +-------------+------+------------+------------+-------+------------+
- | 640 x 480 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z,DB,DBZ |
- | 800 x 600 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z,DB,DBZ |
- | 1024 x 768 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z,DB,DBZ |
- | 1152 x 882 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z,DB |
- | 1280 x 1024 | N | N,Z,DB,DBZ | N,Z,DB,DBZ | N | N,Z |
- | 1600 x 1200 | N | N,Z,DB | N,Z,DB | N | - |
-
- Please note that all User3D values are reset to one whenever a display
- driver is installed.
-
-
- Board Testing
- ~~~~~~~~~~~~~
-
- Known Bugs and Limitations
- ~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- HCT/DispTest
- The DispTest application for testing full-screen VGA modes may crash
- the system when some modes are tested. An updated BIOS is required.
-
- Screen 13/13 is wrong when viewed in a window.
-
- Systems using more than one PCI bus
- There are systems where Windows NT reports conflicts between adapters
- installed beyond the PCI bridge. In this case, the MGA Millennium
- miniport driver cannot access its own board. If your system appears
- unable to find the Millennium board, try moving it to a different PCI
- slot.
-