In the Award SiS 496/497 486DX2 66MHz machine, when running Windows 3.11 using the 1024 x 768 8-bit colour generic SVGA drivers, some MS-DOS based software that uses the VESA graphics do not work correctly, if not at all.
For example, I tried running Tristan Pinball in 640 x 480 8-bit colour SVGA mode from a Windows 3.1 session and attempting to run it results in a dark gray screen and displaying nothing:
- Gray screen.png (40.61 KiB) Viewed 3097 times
Selecting Ctrl-Alt-Delete from the file menu when in a non-responsive MS-DOS graphical mode session brings up a BSOD blue screen. However, the text display is garbled and not showing correctly:
- BSOD text mode corruption.png (48.76 KiB) Viewed 3097 times
Lastly, selecting Ctrl-Alt-Delete when not in a MS-DOS graphical mode brings the BSOD blue screen, but somehow the display ends up getting stretched:
- BSOD text mode display stretch.png (80.79 KiB) Viewed 3097 times
I'm still on r305 and had switched again to the Trident TGUI9440 video adapter with 2 MB VRAM recently. Is there a way to fix this issue?
You might want to try running games from a Windows 3.1 MS-DOS prompt to see if they work correctly for you or not.
For me, until this issue is resolved in the next revision, I would personally avoid running any MS-DOS based software, such as games in a Windows 3.x session.
