readme.txt Driver File Contents (CyrixMGMxNT-3_1-95.zip)

Windows NT 4.0 Drivers

Copyright (c) 1996-1997 Cyrix Corporation
Copyright (c) 1990-1996 Microsoft Corporation


Release Information

- Version 1.12 11/25/1997
  Added work-around for video on 6x and 7x GXm parts.
  Set VGA mode 3 on Video reset so PC97 manual display tests can pass.

- Version 1.11 11/13/1997
  Fix direct draw flip code to correctly wait for previous
  surface to finish flipping before going on. Fixes WHQL fail.

- Version 1.10 11/11/1997
  Mask off lowest 22 bits of DC_CUR_ST_OFFSET before using
  it.

- Version 1.09 11/9/1997
  Remove destblt capability bit from direct draw
  Missing icon problem fixed
  Add hook for examining machine state

- Version 1.08 11/5/1997
  Add GXm changes to paint and direct draw operations

- Version 1.07 11/3/1997
  Accelerate text glyphs
  GXm changes

- Version 1.06 10/10/1997
  Add version information to gx.dll and add copyright strings
  to gx.dll and gx.sys. (#1516)

  Completely remove unsupported modes from list of supported
  modes instead of just zeroing the length. This was responsible
  for intermittent crashes when the HCT short regression suite
  was doing auto-restarts. (#1530)

  Check for ExpressVideo running and abort miniport's DriverEntry
  if it isn't. (#1518)

- Version 1.05 9/25/1997

  Added bitblt workaround for requests with more than 50 clipping
  rectangles which use EngBitBlt to do the rendering. Clip rectangle
  enumeration cannot procede after a call to EngBitBlt. 

- Version 1.04 9/25/1997

  Fixed HCT errors including 16bpp drawing bug and masked blit.
  Added GXm support.

- Version 1.03 8/14/1997

  Fixed several internally discovered bugs in the video support.

- Version 1.02 8/1/1997

  Added support for Cognac video functions through direct draw

- Version 1.01 4/29/1997

  Remove 16 bpp modes for LOW memory model until more
  fully supported in firmware.

  Fixed bug which broke directdraw programs when they
  attempted to switch resolutions.

- Version 1.0 4/21/1997

  Direct Draw support.
  Cursor panning for flat-panel support.
  Video compression added.

- Version 0.2 beta, 3/25/1997

  Added sub-pixel line support.
  Next release:
    Cursor panning for flat-panel support.
    Direct Draw support.


- Version 0.1 alpha, 12/8/1996

  Initial release
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How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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