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0.9b (c) 1995 Peter Childs
Will OS/2 2.1 work with my SuperVGA adapter?
Consult the OS/2 2.1 Installation Guide and Using the Operating System manuals for complete information on SuperVGA support.
OS/2 2.1 contains built-in 256 color drivers for most SuperVGA adapters based on the following chipsets:
o ATI 28800 o Cirrus Logic CL-GD5422 and CL-GD5424 o Headland Technologies HT209 o IBM VGA256C o Trident Microsystems TVGA8900B and TVGA8900C o Tseng Labs ET4000 o Western Digital/Paradise WD90C11, WD90C30, and WD90C31 (in WD90C30 mode)
Some SuperVGA adapters (notably ATI's Vantage and Ultra lines) are 8514/A hardware compatible and will function in 1024x768 256 color mode with OS/2's built-in 8514/A driver.
Drivers for other SuperVGA adapters (along with installation instructions), and modified versions of the built-in drivers (such as 16 color versions or small icon versions) should be available from the adapter vendors directly or through (3.2) Shareware and Freeware Sources. In addition, IBM has released a set of drivers for SuperVGA adapters based on S3 chipsets to these public sources. (However, certain S3-based adapters require custom drivers from vendors.)
Regular Windows 3.1 display drivers may be used for the full screen Win-OS/2 desktop. To install a Windows 3.1 display driver under Win-OS/2, simply replace the \OS2\MDOS\WINOS2\SYSTEM\VGA.DRV file with the Windows .DRV file supplied by the vendor. (Be sure to make a copy of the original OS/2-supplied driver file first.) Note that you may have to use the EXPAND program supplied with Win-OS/2 to decompress the vendor's .DRV file.
OS/2 2.1 has now routinized the procedure for setting customized refresh rates using DOS-based utilities (such as VMODE). You will be prompted during installation of a SuperVGA driver, and you can specify the DOS utility you wish to execute along with its parameters (if any). You may also need to invoke the utility in your OS/2 AUTOEXEC.BAT file so that DOS sessions are properly configured to your monitor's specifications. Read the OS/2 manuals carefully for details on how to use the DSPINSTL program to install SuperVGA drivers and customize refresh rates for your monitor. [Note that for SuperVGA adapters based on the Tseng 4000 chipset ONLY you may use the command SVGA MONITOR from any full screen DOS session to customize refresh rates for your particular monitor.]
Related information:
(2.5) Specific Hardware Recommendations (2.7) Device Driver List (3.2) Shareware and Freeware Sources (5.8) Displaying Background Bitmaps
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