                                                                                
                                                                                
 W.B.A.                                                  6/16/93                
 J.M.J.                                                  6/02/93                
                                                                                
                      S3** OS/2* 16 Bit Display Drivers                         
                                                                                
                      Developed by S3 Incorporated for                          
                                                                                
            86C911/86C924/86C801/86C805/86C928 GUI Accelerators.                
                                                                                
 ----------------------------------------------------------------------         
                                                                                
                                                                                
 These S3 OS/2 16 bit display drivers were developed by S3 Incorporated and     
 are being distributed by IBM as a convenience to the users.                    
                                                                                
 IBM IS NOT RESPONSIBLE IN ANY WAY FOR AND DOES NOT WARRANT THE OPERATION OF    
 THIS SOFTWARE.  SEE WARRANTY AT THE END OF THIS DOCUMENT.                      
                                                                                
 Support:  Problems with these drivers should be directed to your hardware      
           vendor's technical support line, whose telephone numbers are         
           listed below, or to their BBS.                                       
                                                                                
 RELEASE VERSION 1.2                                                            
                                                                                
                                                                                
 IMPORTANT NOTICE                                                               
                                                                                
         BEFORE ATTEMPTING TO INSTALL THESE DRIVERS, PAY ATTENTION TO           
         THE INSTALLATION NOTES. ALL FILES MUST BE COPIED TO HARD DISK          
         BEFORE RUNNING S3INSTL.CMD. INSTALLING FROM DISKETTE IS NOT            
         SUPPORTED.                                                             
                                                                                
         THESE DRIVERS DO NOT WORK WITH ANY OF THE OS/2 2.1 BETA TEST           
         VERSIONS!  ALSO IF YOU HAD AN OS/2 2.1 BETA TEST VERSION ON YOUR       
         SYSTEM AND DO NOT REFORMAT YOUR OS/2 PARTITION BEFORE INSTALLING       
         THE OS/2 2.1 GA VERSION, YOUR "SEAMLESS" WIN-OS2 SESSIONS WILL         
         NOT WORK PROPERLY.                                                     
                                                                                
 SUPPORTED HARDWARE -                                                           
                                                                                
 These device drivers have been tested and verified to function correctly on    
 the following computer systems and add-in graphics adapters. Many others       
 may also function correctly.                                                   
                                                                                
 1) Actix** GraphicsENGINE 32 series adapter                                    
 2) Actix** GraphicsENGINE 32VL series adapter                                  
 3) Actix** GraphicsENGINE Ultra series adapter                                 
    Call Actix tech support at (408) 986-1625                                   
                                                                                
 4) Dell** Models 4XXs/L, 4XX/L, 4XXs/M, 4XX/M, 4XX/T systems                   
    Call Dell tech support at 1-800-624-9896                                    
    Note: See Dell Systems section below for more information.                  
                                                                                
 5) Metheus** Premier 928 ISA adapter                                           
 6) Metheus** Premier 928 VL adapter                                            
                                                                                
                                                                                
 Many popular add-in graphics adapter companies, such as Diamond Computer       
 Systems, Number Nine, Orchid Technologies, and STB, customize the S3 chip      
 set.  For example, they may incorporate a different clock chip into their      
 board design.  For this reason, these S3 drivers may not be fully              
 compatible with all adapters containing the S3 chip set.  Contact your         
 hardware vendor for drivers adapted for their boards.                          
                                                                                
                                                                                
 Dell Systems                                                                   
                                                                                
 These S3 device drivers require updates to the BIOS on the Dell systems.       
 Please contact Dell Computer Corporation at 1-800-624-9896 for information     
 on obtaining updates.  The BIOS can also be downloaded through the Dell BBS    
 (8,N,1) 512-338-8528.                                                          
                                                                                
         Dell Systems                    BIOS REV                               
                                                                                
         4XXs/L, 4XX/L                   A10 or later                           
         4XXs/M, 4XX/M                   A10 or later                           
         4XX/T                           A10 or later                           
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
 SUPPORTED RESOLUTIONS                                                          
                                                                                
                                Resolution    Color   Monitor Refresh Rate (Hz) 
 ------------------------------------------------------------------------------ 
 86911/924:                                                                     
                                1024x768        256      43 Interlaced, 60, 70  
                                 800x600        256      56, 60, 72             
                                 640x480        256      60, 70                 
                                                                                
 86C801/805/928 for use w/ AT&T 491 DAC:                                        
                                 1280x1024     256      45 Interlaced           
                                 1024x768      256      43 Interlaced, 60, 70   
                                 800x600       256      56, 60, 72              
                                 640x480       256      60, 72                  
                                                                                
 86C928 for use w/ BT 485 DAC:                                                  
                               1280x1024       256       72                     
                               1024x768        256       43 Interlaced, 60, 70  
                               800x600         256       56, 60, 72             
                               640x480         256       60, 72                 
                                                                                
 SUPPORTED OS/2 RELEASES - OS/2 2.0, OS/2 2.0 w/Service Pack, OS/2 2.1          
                                                                                
 These S3 device drivers have been implemented as 16 bit drivers allowing their 
 use on OS/2 2.0 which contains a 16 bit graphics engine.  In addition, the     
 drivers support OS/2 2.0 with the Service Pack and OS/2 2.1, both of which     
 contain a 32 bit graphics engine.                                              
                                                                                
 FUNCTION - These OS/2 presentation device drivers contain the support for OS/2 
 Presentation Manager, DOS and Microsoft** Windows** applications running under 
 OS/2.  DOS and Microsoft Windows applications each may be run in a window on   
 the OS/2 desktop.  This is referred to as "seamless".  The S3 drivers exploit  
 the high performance graphical user interface (GUI) accelerator functions      
 offered by the S3 GUI Accelerators.                                            
                                                                                
 FUNCTIONAL RESTRICTIONS - These presentation drivers do not support the        
 following functions:                                                           
                                                                                
 1) Presentation Manager applications which manipulate the 256 color palette    
 will not actually change the color palette.  Therefore, bitmap display         
 applications which attempt to tune the hardware color palette for a particular 
 picture will display the pictures with less fidelity.                          
                                                                                
 2) Software Motion Video introduced in OS/2 2.1.                               
                                                                                
 3) A small number of functions unique to multi-media applications written for  
 XGA*.                                                                          
                                                                                
 4) 132 column text mode.                                                       
                                                                                
 5) 911/924 drivers only- Under OS/2 2.0 with a 32 bit engine, the icon colors  
 in the Program Manager Window are not displayed correctly.                     
                                                                                
 6) Under OS/2 2.0, manually set the following parameters in order to correctly 
 save and restore DOS and Win-OS/2 full screen shell:                           
                                                                                
      Full Screen DOS Session -      VIDEO_8514_XGA_IOTRAP            OFF       
      WIN-OS/2 Full Screen Session - VIDEO_8514_XGA_IOTRAP            OFF       
                                     VIDEO_SWITCH_NOTIFICATION        ON        
                                                                                
 7) Under OS.2 2.1, the mouse cursor in Win-OS/2 full screen has a slow         
 response time.                                                                 
                                                                                
                                                                                
 INSTALLATION -                                                                 
 1) If S3 drivers (1.1.or 1.0) have previously been installed, rebooting OS/2   
    after installing OS/2 2.1 will result in an error message, SYS1719, for     
    the file \OS2\MDOS\VENH.SYS.  Simply press ENTER and ignore the             
    condition and proceed to install the S3 drivers.                            
                                                                                
 2) Please note that three sets of software are provided:  911/924, 80X/928 for 
    use with AT&T 491 DAC, and 928 with Brooktree (BT) 485 DAC.                 
                                                                                
 3) Choose one set of files and copy all files to the same subdirectory in      
    the hard disk.                                                              
                                                                                
 4) Run the supplied S3INSTL.CMD batch file in either an OS/2 window or full    
    screen.                                                                     
                                                                                
 5) Please read the license agreement which will be displayed.                  
                                                                                
 6) If you agree to the license agreement enter "Y" to proceed with the         
    installation. Otherwise enter "N" to terminate the installation.            
                                                                                
                                                                                
                                                                                
 NOTE: If you receive the following message, the answer is YES.                 
                                                                                
 The target file 'filename' is newer than the source file.  Do you want to      
 overwrite the target file?  (Y or N)                                           
                                                                                
                                                                                
                                                                                
 Trademarks and Service Marks                                                   
                                                                                
 The following terms, denoted by an asterisk (*) in this README, are            
 trademarks or registered trademarks of the IBM Corporation in the United       
 States or other countries:                                                     
                                                                                
 IBM   OS/2  XGA                                                                
                                                                                
 The following terms, denoted by a double asterisk (**), are trademarks of      
 other companies as follows:                                                    
                                                                                
 Trademark       Owner                                                          
 Actix           Actix Inc.                                                     
 Dell            Dell Computer Corporation                                      
 Metheus         Metheus Corporation                                            
 Microsoft       Microsoft Corporation                                          
 S3              S3 Incorporated                                                
 Windows         Microsoft Corporation                                          
                                                                                
 IBM DISCLAIMS ALL WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WITHOUT  
 LIMITATION, WARRANTIES OF FITNESS AND MERCHANTABILITY WITH RESPECT TO THE      
 INFORMATION IN THIS DOCUMENT.  BY FURNISHING THIS DOCUMENT, IBM GRANTS NO      
 LICENSES TO ANY RELATED PATENTS OR COPYRIGHTS.                                 
                                                                                
 Copyright IBM Corporation, 1993, all rights reserved.                          
 Copyright S3 Incorporated, 1993, all rights reserved.                          
                                                                                
