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Problems with Trident ISA VGA card 8900c chipset and Win 3.11

1ST1

Veteran Member
Joined
Oct 21, 2014
Messages
1,493
Location
near frankfurt/m, germany
Hello, I am trying to set up a TVGA 8900c VGA card in Windows 3.11. It has 1 MB Ram and it should support 1024x768 in 16 and 256 colors. But the most I am getting out is 800x600 in 256 colors or 1024x768 in 16 strange colors (what should be black is pink). Also 800x600 in 32k or 65k is not working, here I get a strange black&white desktop (progman, etc.) with noisy pink backround. If I choose 1024x768x256 resolution in Windows Setup, I get just black screen or error message (it disapperars too fast to read it) when starting Windows, but then Windows still runs, I can end it and return to DOS with ALT+F4 and then Enter.

I already tryed many drivers from here:
http://files.mpoli.fi/hardware/DISPLAY/TRIDENT/ --> Best results, as described above, with the package NTRIDENT.ZIP
http://vogonsdrivers.com/index.php?catid=37 --> Nothing better

Is there any special thing to take care with the TVGA 8900C? (I tryed WDC90C31 as alternative, but the PC does not display anything with that while booting. I don't have a S3, ET4000 or Mach32 ISA card for testing)

With one of the packages iver there I found a DOS utility folder with a Trident tool called svm, where I can select many different video modes for DOS "text mode", also the VGA modes 640x480, 800x600 and 1024x768 in up to 16, 256, 32k or 64k colors. It has very similar results as described above inside Windows, like blurry pink backround.

Is there maybe a memory exclusion needed by QEMM386 which I must do for this VGA card ? Does the TVGA may conflicts with another card in my PC (there is a TIGA card at c800h (no user manual to set alternative settings) (EIZO TIGA base drivers detect the card after excluding C800-C8FF from QEMM) and an Adaptec 1542A with BIOS at D800h? As the PC has SCSI disks to boot, Adaptec BIOS can not be disabled.
 
Does the TVGA may conflicts with another card in my PC (there is a TIGA card at c800h ...
Hmm. A card at C8000.
See the 'Possible BIOS ROM conflict - hard disk controller and VGA' section of [here].
And in that, you will read that member 'TheMaritimeMan' experienced the conflict with a TVGA8900CL.
 
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