PRB: Display Problems with Win32s and the S3 Driver (117153)
The information in this article applies to:
- Microsoft Win32s 1.1
- Microsoft Win32s 1.15
- Microsoft Win32s 1.2
- Microsoft Win32s 1.3
- Microsoft Win32s 1.3c
This article was previously published under Q117153 SYMPTOMS
Applications running on Windows 3.1 exhibit no problems when using an S3
driver, with a resolution of 1024x768 and 256 colors. However, the display
is corrupted when Win32-based applications, such as FreeCell, run on Win32s
in the same configuration.
CAUSE
This is a known problem with the S3 driver.
A general protection (GP) fault occurs when the display driver is
performing a bit-block transfer (BitBlt). This happens whether or not
Win32s is running. However, when Win32s is not running, Windows recovers
from the faults. When a Win32-based application is running, Win32s catches
all exceptions and transfers control to the nearest try/except frame. As a
result, the BitBlt is interrupted.
RESOLUTION
Certain S3 drivers which exhibit these problems can be made to work with
Win32s by making the following edit to your SYSTEM.INI file before running
any Win32-based applications:
In the SYSTEM.INI file, you will find an entry in the [display] section
aperture-base=100
Change this entry to
aperture-base=0
Restart Windows and the display problems will no longer occur.
If this does not help, obtain the latest S3 drivers. It is reported that S3
driver version 1.3 does not have this problem.
| Modification Type: | Major | Last Reviewed: | 10/3/2003 |
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| Keywords: | kbFAQ KB117153 |
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