S3 86C805 Flat Memory Model Windows 3.1 Driver 2.4B8

Build Date:      July 12, 1994

1.      This is a release for the S3 86C805 product.
2.      The following switches are available for the OEM in the
        Display section of the SYSTEM.INI file:

        POLYGON-SUPPORT=[ON|OFF]
        Up to 400 vertices are supported if the profile string
        is enabled for polygon support.  The default setting is ON.

        ELLIPSE-SUPPORT=[ON|OFF]
        Ellipse and Circle Output - The default value is ON.
        Support consists of Diameters between 2 and 2048 pixels
        and solid or hollow brushes.

        TEXTRMW=[0|1]
        Sets read modify write cycle to fast for text.  The default
        value is 0.

        FASTMMIO=[ON|OFF]
        Set to ON for antivirus programs.  The default value is OFF.

        WIN32-INSTALLED=[ON|OFF]
        Provides compatibility with win32s environment.  The default is ON.


3.      The following resolutions are supported:

  BIOS    Pixel     No.     Memory   Font            Refresh
  Mode  Resolution  Colors  Required Type            Rates
  201     640x480   256     0.5MB    Fixed           60, 72
  110,301 640x480   32768   1MB      Fixed           60
  111,211 640x480   65536   1MB      Fixed           60
  212     640x480   16.7M   1MB      Fixed           60
  202     800x600   16      0.5MB    Large/Small     56, 60, 72
  203     800x600   256     0.5MB    Large/Small     56, 60, 72
  113     800x600   32768   1MB      Large/Small     60
  114     800x600   65536   1MB      Large/Small     60
  204     1024x768  16      0.5MB    Large/Small     43, 60, 70
  205     1024x768  256     1MB      Large/Small     43, 60, 70
  116     1024x768  32768   2MB      Large/Small     60
  117     1024x768  65536   2MB      Large/Small     43
  208     1280x1024 16      1MB      Large/Small     45, 60
  107     1280x1024 256     2MB      Large/Small     45, 60

Driver Limitations:

Some of these bugs are considered to be a limitation with the application.


640x480x24bpp only (1MB)

   DCT Disptest:  When prompted to change from full to windowed screen the
   windowed session displays the wrong color screen.  For example, a blue
   instead of white text is displayed in the first windowed screen.  In the
   upper left corner the background color should be black instead of blue.

   Windows 3.1 & MS DOS Shell:  Enter "dir a:" in windows DOS box, it goes
   to full screen and large flickering letters appear.  Enter "a" and Alt-Tab
   back to program manager to return to normal.


4bpp modes only

   PhotoShop 2.5:  24-bpp bitmaps display multiple vertical images.
   Happen in all 4bpp modes.


1280x1024 and 1600x1200

   Corel Draw 5.0 1280x1024x4bpp & 8bpp:  A few pixels are displayed moving
   solid filled objects around the draw area.

   Windows 3.1 - Calendar: A blank window displays after maximizing and
   reducing the Calendar window.  Happens with the 1280x1024 and 1600x1200
   modes at all color depth.

All Resolutions

   Harvard Graphics 1.0: After switching the print layout from landscape
   to portrait, vertical stripes may on the print out of a document
   containing a patterned object.  For example, printing a document that
   has a circle filled with a hash pattern.

   Video for Windows 1.1:  Moving Video for Windows playback screen window
   around leaves broken lines on the desktop when DCI support is enabled.

   Lotus AMI PRO 3.0:  Printing to HP 560C printer will printout chopped
   off text.