
      Installation of Chips & Technologies 655XX Drivers for OS/2 2.1
     -----------------------------------------------------------------

 ******************************* Warning *********************************** 
 Before installation of any SVGA display driver, the system display should be 
 set to VGA mode. DO NOT install this driver package if the system display is
 set to anything other than 640x480x16 VGA mode. To restore VGA mode, use
 Selective Install and select VGA for Primary Display, or run the SETVGA
 utility.
 ****************************************************************************

    1. Open an OS/2 full-screen or windowed session
      
    2. Insert Display Diskette in Drive A:
     
    3. At the OS/2 Command Prompt, enter the following command:
      
    	 A:\INST2X A: C:    ;; on OS/2 2.0,2.1 systems 

    	 A:\INST30 A: C:    ;; on WARP OS/2 3.0 systems

	 where   A: is the source drive
	         C: is the boot drive where OS/2 2.x is installed
		 
        **NOTE** If installing this driver package on OS/2 3.0 ( WARP )
	 	 MAKE SURE you use INST30.CMD 
	         			   
        The command file will copy the following files to C:
       
       		 C:\OS2\SVGA.EXE	     -- original saved as SVGA.ESV
		 C:\OS2\INSTALL\DSPINSTL.EXE -- original saved as DSPINSTL.211
		 C:\OS2\SCREEN01.SYS         -- original saved as SCREEN01.SSV
		 C:\OS2\MDOS\VSVGA.SYS
		 C:\OS2\CHIPS.SYS
		 C:\OS2\INSTALL\CT655XX.DSC
	
	The command file will also run SETLBA.EXE which will modify CHIPS.SYS
	with this adapter's linear buffer address obtained from BIOS.
	
     4: When INSTALL completes, do a system SHUTDOWN and REBOOT. This is
	required to load SCREEN01.SYS which has been modified to correctly
	identify the display adapter.
		 
     5: After the system has been rebooted do the following:
	A) OS/2 2.x System
	   Open an OS/2 Full Screen or Windowed session. At the OS/2 command
	   prompt type DSPINSTL to install new device driver and configure the
	   video system.

	B) OS/2 3.0 (WARP) System
	   Go to the System Setup folder and run Selective Install to install
	   new device driver and configure the video system.
	   DO NOT use DSPINSTL on WARP systems.
	
        Follow the DSPINSTL or Selective Install session prompts to complete
	the installation.

		*  Select Primary Display
		
		*  From the list of Primary Display Adapter Types		

		      Select CHIPS & TECHNOLOGIES 655XX

		*  From the list of available Display Resolutions   

		      Select a display resolution

		*  Specify the correct Source Directory      


       ALWAYS use the INSTxx.CMD on this source disk for the FIRST install
       of Chips & Technologies 65545 device drivers.

       To switch to a different video resolution, follow STEP 5 above.


       OS/2 PM Display Drivers
       -----------------------
       The following display resolutions are available with this release:
       
       		640x480x256 Color  		CRT 60Hz
		800x600x256 Color  LCD Panning	CRT 60Hz
		1024x768x256 Color LCD Panning	CRT 60Hz Non-Interlaced

       Seamless Windows Support	
       ------------------------
       This release of the OS/2 2.1 Device Driver for Chips & Technologies   
       655XX supports Seamless Windows.
       
       WIN OS/2 Full Screen	       
       --------------------
       The Windows 3.1 drivers provided with this release are enhanced mode
       drivers. The following display resolutions are provided:

       		640x480x256 Color  		CRT 60Hz
		800x600x256 Color  LCD Panning	CRT 60Hz
		1024x768x256 Color LCD Panning	CRT 60Hz Non-Interlaced

       The WIN-OS/2 Full Screen session setting WIN_RUN_MODE should be set to	
       Enhanced Capability. The default setting is Standard Mode. If this
       setting is not changed, Windows WILL NOT run.

       WIN-OS/2 should be started by selecting the WIN-OS/2 Full Screen Icon in
       the Command Prompts folder, or with the WIN command in a DOS Full Screen
       OS/2 Full Screen session.

       DO NOT start WIN-OS/2 in a DOS or OS/2 Window. The system does not support 
       the enhanced video mode being used in a window, and therefore will not run.

       DO NOT use ALT-HOME to switch a DOS or OS/2 Full Screen session to Windowed	
       when running WIN-OS/2.

