OS/2 
---- 
These drivers are designed to function with the OS/2 Version 3.0 and 2.1x 
operating systems. 
 
Hardware 
--------
These drivers support Chips & Technologies 65545 and 65548 graphics chips
in a VL or ISA Bus configuration.

Driver installation 
=================== 

Before installation of this display driver, the system display should be set
to VGA mode. VGA is the default video mode enabled when OS/2 is installed. 

If the current system primary display is not VGA, or if a previous version of 
this driver is being used, the system should first be returned to VGA mode.
To restore VGA mode, use Selective Install and select VGA for Primary Display.
For more information on this procedure, see the section on Changing Display
Adapter Support in the OS/2 Users Guide.


To install this driver, do the following steps:
 
	Step 1: Open an OS/2 full screen or windowed session. 
	
	Step 2: Place the CHIPS 65545 Display Driver Diskette in drive A.

		Type A: <ENTER> to make this the default drive.

		Type INSTALL A: C:  <ENTER>

		where A: is the floppy disk drive and       
		      C: is the hard disk partition containing \OS2	
		      
		Once the Install Program is completed, do a system shutdown and 
		reboot. 
	        
		A log of the information output during the install can be found
		in <root>:\OS2\INSTALL\CTINSTL.LOG
		
 
	Step 3: After the system has rebooted, do the following depending on
		which version of OS/2 is installed:
        		
		A) OS/2  2.1x 
		   Open an OS/2 full-screen or windowed session.  At the OS/2 
		   prompt, type DSPINSTL <ENTER> to install the new device 
		   driver and configure the video system. 

		B) OS/2  Version  3 
		   Open the System Setup folder and run Selective Install to 
		   install the new device driver and configure the video 
		   system. 
 
        Follow the instructions on the screen to set up the OS/2 display 
	drivers in your system.  First, select Primary Display from the System
	Configuration Window. From the list of Primary Display Adapter Types,
	select Chips and Technologies 65545 and then select OK.

	After the install program has completed, the display driver will be 
	initialized for 640x480x256 Color. Shutdown and then reboot the system
	for the installed changes to take effect.

        To switch to a different video resolution or color depth, do the
	following:

Change Video Resolution
======================= 

	Step 4: To change the screen resolution or color depth: 
		Open the System Setup folder, then open System. From the list
		of available screen resolutions, select a new resolution. Point
		to the title-bar icon and double click. See Changing Screen
		Resolution in OS/2 Users Guide for more information.
		

        The system must now be shut down and restarted for changes to take
	effect. 
	
 
NOTE:   Always use the INSTALL.CMD for the FIRST installation of the video 
        device drivers. Thereafter, to change video resolutions, do Step 4
	above. 


WIN-OS/2 
======== 
Please note the following limitations regarding WIN-OS/2. 
 
	1. The WIN-OS/2 full screen session should be set to Enhanced 
	Capability.  The default setting is Standard Mode.  If this setting 
	is not changed, Windows will not run correctly.
 
	2. 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 or OS/2 Full Screen session. 
 
	3. 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. 
 
	4. When running a full screen WIN-OS/2 session, do not use ALT-HOME to
	switch to Windowed DOS session.
 
 
Driver diskette copy 
==================== 
For proper installation of OS/2 drivers, all diskette copies must be properly
labeled "CTDISP 1". 
 
To copy the OS/2 Display Driver Diskette, follow these instructions: 
 
	Step 1: Copy all files on the OS/2 Display Driver Diskette as you 
		normally would onto another diskette. 
 
	Step 2: Place the diskette copy in drive A.  At the C:\ prompt, 
	type LABEL A: CTDISP 1 to properly label your diskette.  Then store 
	your diskette copy in a safe place.