                                                          23 September 1993

This README describes a 32-bit video device driver for the Orchid
Fahrenheit graphics accelerator video adapters.

This display driver takes advantage of the hardware acceleration
capabilities of the chip sets used on the Orchid Fahrenheit adapters.

The display driver conforms to the OS/2* 32-bit flat memory model and is
designed to function as a 32-bit PM display driver under the OS/2 32-bit
graphics engine subsystem.

THIS VIDEO DEVICE DRIVER IS DESIGNED TO BE USED WITH ORCHID FAHRENHEIT
GRAPHICS ACCELERATORS. USE WITH OTHER GRAPHICS ACCELERATORS IS NOT SUPPORTED
AND MAY DAMAGE SYSTEM SOFTWARE OR HARDWARE. ORCHID IS NOT RESPONSIBLE FOR USE
OF THIS PRODUCT WITH NON-SUPPORTED HARDWARE. 


Supported Features
------------------
The S3 display driver supports the following resolutions/colors and OS/2
full-screen columns/rows:

     640 x  480 x 256 colors
     800 x  600 x 256 colors
    1024 x  768 x 256 colors
    1280 x 1024 x 256 colors  ('805 based adapters only w/2MB video memory)

    OS/2 full screen 132,25
    OS/2 full screen 132,43

It also supports the following features:

*   OS/2 PM Palette Manager
*   Software Motion Video
*   Static mode change


Orchid Fahrenheit Display Driver Restrictions
---------------------------------------------

*   A minimum of 1MB video memory is required.

    The Orchid Fahrenheit display driver has been tested on and supports the
    following Orchid adapters with the chip set indicated in parentheses:

    Orchid Fahrenheit 1280      (911A)
    Orchid Fahrenheit 1280      (911B)
    Orchid Fahrenheit 1280      (924)
    Orchid Fahrenheit 1280-D    (911A, 911B)

    Orchid Fahrenheit VA        (801)
    Orchid Fahrenheit 1280 Plus (801)

    Orchid Fahrenheit VA/VLB            (805)
    Orchid Fahrenheit VLB/1280 Plus     (805)


Installation Instructions
-------------------------
NOTE:  Do NOT install this OS/2 2.1 display driver on earlier versions of
       OS/2.

       The OS/2 ATTRIB command is used during installation.  If you elected
       not to install the OS/2 System Utilities or you have deleted the
       ATTRIB command you must use Selective Install to restore it before
       continuing.

To install the Orchid Fahrenheit display driver:

1.  Place this diskette into drive A (or any other diskette drive).

2.  Open an OS/2 full-screen or window session.

3.  At the OS/2 command prompt, enter the following command:

            A:S3INST A: C:

    where:  A: is the diskette drive
            C: is the startup drive (where OS/2 2.1 is installed)

    This command will copy all necessary files to the OS/2 drive.

4.  Perform a shutdown and restart the system.

======================================================================
NOTE:  For PREINSTALLED systems only, omit steps 5 - 8 and perform the
       following steps:

       a) Open the Preinstalled Essentials folder.
       b) Open the Configurations Tools folder.
       c) Open the Configure Preinstalled System object.
       d) Change the display setting to SVGA mode.
       e) Perform a shutdown and restart the system.
       f) Open the OS/2 System folder.
       g) Open the System Setup folder.
       h) Open the System object. Select the desired screen
          resolution on the Screen page of the System Settings
          notebook, and then close the notebook.
       i) Perform a shutdown and restart the system.

This completes the S3 driver installation for preinstalled systems.
======================================================================

5.  Open an OS/2 full-screen or window session.

6.  Run the Display Driver Installation (DSPINSTL) utility program.

    When the Display Driver Install window appears, S3 should be the
    default choice.  (To confirm this default, check the Primary Display
    check box and select OK.  This will display a pop-up window indicating
    the choices for the Super Video Graphics Array.  S3 should be
    highlighted.)

    Select OK.  You will be prompted to insert the source directory
    (installation diskette).  Insert the diskette and select OK again.
    After a moment, you will be asked to accept the preselected Install
    Using Defaults option or to select the Install Using Display Adapter
    Utility Program option.

    DSPINSTL determines the hardware configuration by creating the
    SVGADATA.PMI file on the startup drive where the OS2 directory is
    located.  If this file has not been created, the adapter will not be
    supported.

7.  When DSPINSTL has completed, open the OS/2 System folder, open the
    System Setup folder, and then open the System object.  The Screen page
    of the Settings notebook will list all the supported resolutions for
    your configuration.  Select one and then close the notebook.

8.  Perform a shutdown and restart the system.


Restrictions
------------
1.  While using WordPerfect** for Windows 5.2 you might find that an
    incorrect font is being selected.  If this occurs:

    a.  Quit WordPerfect.

    b.  Edit the \OS2\MDOS\WINOS2\WIN.INI file using the OS/2 System
        Editor.

    c.  Locate the "fontŮ" section in the file.

    d.  Change the entries:

          FROM             TO
         ------           ------
        symbolg.fon      symbole.fon
        helvg.fon        helve.fon
        tmsrg.fon        tmsre.fon
        courg.fon        coure.fon

    e.  Save the file and open WordPerfect.

2.  A repaint problem may occur when running EXCEL** 4.0 for WINDOWS
    seamlessly.  If this occurs change to full screen.

3.  Do not select the 1280x1024x256 non-interlaced option with the Diamond
    Stealth adapters.

4.  Action bar pull-downs may be blacked out when multiple WIN-OS2 seamless
    applications are launched in separate VDM sessions simultaneously.
    Launch each application separately or simultaneously in the same VDM
    session.


New SETVGA Procedure
--------------------
Use the following procedure instead of the SETVGA command if it is
necessary for you to return to VGA mode.  If your display is out of sync
you can follow this procedure after starting OS/2 from the Installation
Diskette and escaping to the command prompt.

Case 1: You installed OS/2 from diskettes

1.  Be sure RSPDSPI.EXE is in the \OS2\INSTALL\ directory.  If it is, go to
    step 2.  If it is not, insert the Orchid Fahrenheit Driver Diskette and
    using the UNPACK.EXE from the diskette, unpack and copy the correct
    RSPDSPI.EXE file 

        unpack a:\tools /n:rspdspi.exe

    Insure the file c:\os2\install\rspdspi.exe exists

    To unpack the UNPACK.EXE utility from the driver diskette first
    rename the OS/2 2.1 UNPACK.EXE to UNPACK.RTL

        ren c:\os2\unpack.exe unpack.rtl

    Then run UNPACK2.EXE (from the driver diskette)

        a:\unpack2.exe a:\unpack

    It is important you use the RSPDSPI.EXE from the Orchid Fahrenheit
    Driver Diskette. The RSPDSPI.EXE from the retail version of OS/2
    2.1 will not work correctly.

2.  Enter the following commands:

    C:
    CD C:\OS2\INSTALL
    RSPDSPI /PK:VGA /SK:NONE /S:A:\ /T:C:

    where:  A: is the diskette drive you use to install OS/2
            C: is the startup drive (where OS/2 2.1 is installed)


Case 2: You installed OS/2 from CD-ROM or a LAN

1.  Be sure RSPDSPI.EXE is in the \OS2\INSTALL\ directory.  If it is, go to
    step 2.  If it is not, insert the Orchid Fahrenheit Driver Diskette and
    using the UNPACK.EXE from the diskette, unpack and copy the correct
    RSPDSPI.EXE file 

        unpack a:\tools /n:rspdspi.exe

    Insure the file c:\os2\install\rspdspi.exe exists

    To unpack the UNPACK.EXE utility from the driver diskette first
    rename the OS/2 2.1 UNPACK.EXE to UNPACK.RTL

        ren c:\os2\unpack.exe unpack.rtl

    Then run UNPACK2.EXE (from the driver diskette)

        a:\unpack2.exe a:\unpack

    It is important you use the RSPDSPI.EXE from the Orchid Fahrenheit
    Driver Diskette. The RSPDSPI.EXE from the retail version of OS/2
    2.1 will not work correctly.

2.  Enter the following commands:

    C:
    CD C:\OS2\INSTALL
    RSPDSPI /PK:VGA /SK:NONE /S:E:\OS2SE21\ /T:C:

    where:  E: is the CD-ROM or LAN drive
            C: is the startup drive (where OS/2 2.1 is installed)

Trademarks
----------
The following terms, denoted by an asterisk (*) in this file, are
trademarks or registered trademarks of IBM Corporation in the United States
and/or other countries:

IBM                  Presentation Manager
OS/2


The following terms, denoted by an asterisk (**) in this file, are
trademarks or registered trademarks of other companies as follows:

Trademark                Owner
-------------------------------------------------------
EXCEL                    Microsoft Corporation
Orchid Fahrenheit        Orchid Technology
S3                       S3 Incorporated
Windows                  Microsoft Corporation
WordPerfect              WordPerfect Corporation

ORCHID DISCLAIMS ALL WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING
WITHOUT LIMITATION, WARRANTIES OF FITNESS AND MERCHANTABILITY WITH RESPECT
TO THE INFORMATION IN THIS DOCUMENT.

THIS DRIVER IS COPYRIGHTED BY INTERNATIONAL BUSINESS MACHINES
CORPORATION.  ALL APPROPRIATE RESTRICTIONS APPLY.

PORTIONS ARE ALSO COPYRIGHTED BY ORCHID TECHNOLOGY.
