Dec 302017
 
Bug fix for OS/2 2.0 for ET-4000 video cards (Speedstar, Prodesigner...) that exhibit wavy lines when switch from DOS Full screen to WPS.
File TSENGFIX.ZIP from The Programmer’s Corner in
Category OS/2 Files
Bug fix for OS/2 2.0 for ET-4000 video cards (Speedstar, Prodesigner…) that exhibit wavy lines when switch from DOS Full screen to WPS.
File Name File Size Zip Size Zip Type
README.TXT 876 512 deflated
VSVGA.SYS 64472 34837 deflated

Download File TSENGFIX.ZIP Here

Contents of the README.TXT file


OS/2 2.0 Fix
(as supplied by Bernie Thompson, IBM Boca)

Applies to OS/2 2.0 CSD level 02000 ONLY (the initial retail release).

In this package is a replacement VSVGA.SYS file. This file is located in
\OS2\MDOS. RENAME the previous VSVGA.SYS file to VSVGA.BAK, and copy this
new VSVGA.SYS file in its place.

While this replacement VSVGA.SYS file will work on any system, it is
specifically designed to fix a problem involving SuperVGA adapters
with the Tseng Labs ET4000 (batch number TC6059AF or higher) chipset.
On these adapters entering a full screen DOS or Win-OS/2 session will
cause the display to lose sync. This replacement VSVGA.SYS file remedies
that problem.

Dale Whitfield at IBM Boca, in working with Tseng Labs, came up with this
fix. The fixed VSVGA.SYS file is 64472 bytes in length.

Timothy F. [email protected]


 December 30, 2017  Add comments

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