Graphics Display Device Driver for OS/2 Warp
Systems Supported: IBM Personal Computer systems that use the
Cirrus Logic 5436/46 chip set
Driver Version: 1.12
o This package contains an OS/2 Warp graphics-accelerator device
driver that supports the 5436/46 chip set from Cirrus Logic.
o Read this entire document before beginning the device driver
o The device driver installation diskette must contain a
diskette volume label of "CIRRUS 1" (without the quotation
o This device driver is enabled for the Configuration
Installation Distribution (CID) method.
o This README file is formatted for viewing on your screen.
With it you can:
- Use the Table of Contents to help locate specific topics.
- Use the Find option in the Edit menu of the OS/2 System
Editor to help you locate specific information.
- Print the file.
o Your use of the enclosed device driver indicates your
acceptance of the following terms and conditions:
- You must be, and you agree that you are, a prior licensee
- You may make copies of the OS/2 device driver for the
Cirrus Logic 5436/46 equal to the number of licensed copies
of OS/2 you possess.
- All other terms and conditions of your OS/2 license
agreement apply to this OS/2 device driver for the Cirrus
Logic 5436/46; however, this does not extend any warranty
outlined in such agreement.
1.0 Supported Features
1.1 Supported Resolutions
1.2 Supported Adapters
1.3 Supported Columns and Rows
1.4 DDC Monitor Support
1.5 Selecting Large or Small Fonts for Windows
1.6 New Functions Provided with This Device Driver
3.0 Preliminary Steps
4.0 Setting Your Monitor to VGA Mode
5.0 Installation from Diskette
6.0 Running in Unattended Mode
1.0 SUPPORTED FEATURES
The Cirrus Logic 5436/46 device driver provides a seamless support
for accelerated video graphics and advanced color resolutions
to when used with the minimum required video memory. It conforms
the OS/2 32-bit flat memory model and is designed to function as
a 32-bit Presentation Manager graphics display driver under the
OS/2 32-bit graphics engine.
1.1 SUPPORTED RESOLUTIONS
This graphics-accelerator device driver supports these
resolutions and color depths:
Number of Video Memory
Resolutions Colors Required
640x480 256 1 MB
800x600 256 1 MB
1024x768 256 1 MB
1280x1024 256 2 MB
640x480 65,536 1 MB
800x600 65,536 1 MB
1024x768 65,536 2 MB
640x480 16,777,216 2 MB
1.2 SUPPORTED ADAPTERS
Other IBM systems and video adapters that contain the Cirrus
Logic 5436/46 chip set might be added to these lists over time.
For a comprehensive listing of all major manufacturing products
that are OS/2 compatible, refer to the "OS/2 Hardware
Compatibility List" book. This book is available electronically
on the following bulletin board systems:
IBM National Support Center BBS (data connection: 919-517-0001)
CompuServe (IBM OS/2 Support Forum \Library\IBMFiles\
LAN Server & OS/2 BBS - Sydney, Australia
IBM Austria BBS - Vienna, Austria
IBM BBS - Vancouver, BC, Canada
IBM PS BBS - Hong Kong
IBM OS/2 BBS & IBM AP OS/2 BBS - Singapore
IBM BBS - Belgium
IBM BBS - England
IBM BBS - Spain
OS2BBS - Denmark
Hitline BBS- Switzerland
DAP & PSP BBS - Italy
IBM BBS - Jakarta, Indonesia
IBM BBS - Thailand
NOTE: The compatibility hardware test information supplied is
provided for information purposes. IBM makes no warranty,
express or implied, with respect to the operation of OS/2 on
the personal computers listed.
1.3 SUPPORTED COLUMNS AND ROWS
The number of characters per line (columns) and number of lines
(rows) for an OS/2 full screen can be specified with the OS/2
MODE command. Supported options for this driver are:
Note: 132 column support is not available.
1.4 DDC MONITOR SUPPORT
DDC monitor detection is not supported in the current release of the
1.5 SELECTING LARGE OR SMALL FONTS FOR WINDOWS
The selection utility is available for OS/2 Warp 3.0 only.
1.6 NEW FUNCTIONS PROVIDED WITH THIS DRIVER
Change Refresh Rate on the Fly is available for OS/2 Warp 3.0
only. The new utility, located in the Systems Settings, allows the
user to change the vertical refresh rate "on the fly", that is, without
resetting the operating system or rebooting the system.
The following procedure will allow you to change the refresh rate for
your monitor without rebooting the system:
1. Double click on the OS/2 System icon
2. Double click on the System Setup icon
3. Double click on the System icon
4. Check to see if the monitor attached to your system is selected
in the Monitor Box
5. Click on down button of the Refresh box and select a refresh rate
(this refresh rate must be supported by your monitor)
6. Click the Test button. The display will blank momentarily and
return with a message box
7. Click on the YES button in the message box if your screen appears
OK. If your display is not readable, press the ESC key to return to
the original refresh rate setting.
This graphics accelerator driver is compatible with OS/2 Warp.
3.0 PRELIMINARY STEPS
The following steps prepare your computer for the installation
of a new OS/2 graphics device driver:
1. You must have OS/2 DOS Support installed in order to install
2. If you previously installed SVGA, or any Cirrus Logic Driver,
you must return to VGA mode before installing any subsequent
driver. Please use the procedures in the following section.
4.0 SETTING YOUR MONITOR TO VGA MODE
Use the following procedures to return to VGA mode.
o If you are installing this device driver on OS/2 Warp
and you do not have a usable OS/2 Desktop, use
the following procedures to return to VGA mode.
However, if you have a usable Desktop, it is
recommended that you use Selective Install to set
your monitor to VGA mode.
1. Turn on your computer. If your computer is
already on, press Ctrl+Alt+Del to restart it.
2. When a small white box appears in the upper-left
corner of your screen, press Alt+F1. If you see
the OS/2 Logo displayed, you must start again at
3. When the Recovery Choices screen appears, press V.
Your video adapter is now restored and can work in
VGA mode. If you want to install a new video
adapter or video device driver, refer to Chapter
16, "Video Procedures," in the User's Guide to
5.0 INSTALLATION OF DISPLAY DRIVER FROM DISKETTE
To install the Cirrus Logic Device driver from diskette,
do the following:
1. Insert the Cirrus Logic diskette into drive A:
2. Double click "OS/2 System" Folder.
3. Double click on the Drives icon.
4. Double click on Drive A:
5. Double click on Install.exe.
6. Choose "Install" from the Cirrus Logic Install Program.
7. Click OK to let Install identify your graphics hardware and
8. Select "Yes" to change your display driver settings.
9. Select a screen resolution and close System Settings dialog
10. Close down Drive A - Icon View, Drives - Icon View and System
Setup Icon View.
11. Remove the diskette from Drive A:
12. Shut down and reboot the system.
Note: If video memory size is changed in a system, the
user must re-install Cirrus drivers (by re-installing
VGA drivers first, then the Cirrus drivers). Refer
to Section 3.0 above.
6.0 RUNNING IN UNATTENDED MODE
Install as follows:
At the command prompt, type:
A:] install /r:<path>install.rsp
where <path> == floppy or hard drive containing installation
The INSTALL.RSP file contains a list of default responses to installation
options. These options are the location of drive containing the media, or
use of an optional log file (for logging the unattended installation).
o The Refresh Rate Change on the Fly Utility does not detect DDC
The following terms are trademarks of the IBM Corporation in the
United States and/or other countries:
The following terms are trademarks of other companies:
Cirrus Logic Cirrus Logic, Inc.
IBM DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS OR
IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND
MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN
THIS DOCUMENT. BY FURNISHING THIS DOCUMENT, IBM
GRANTS NO LICENSES TO ANY RELATED PATENTS OR
THIS DRIVER IS COPYRIGHTED BY INTERNATIONAL BUSINESS
MACHINES CORPORATION. ALL APPROPRIATE RESTRICTIONS