You might find old ATI or Nvidia PCI cards with digital DFP connectors, and use a DVI adapter for them. Matrox G200 has an addon digital daughter card, which may work in Win 3.1 as well.

I have one here. Number Nine SR9 SGRAM, with S3 Savage4 Xtreme chip and DVI-I. There are 3.1 drivers for the Savage4.

Edit: damn, this is AGP, sorry. I'll look a bit deeper...

Edit2: S3 Savage is the place to look. I found this, although it's almost certainly going to be hard to find:

Appian Graphics Gemini DVI-I PCI
http://vgamuseum.info/index.php/news/item/513 … emini-dvi-i-pci

easier to just use a VGA to DVI adapter

oeuvre wrote:

easier to just use a VGA to DVI adapter

depnds, if the display has only DVI-D or you want to use DVI to HDMI adapters that is not going to work. For that you would need a scaler/converter.

OT: is it normal for graphics cards to deliver audio over DVI? I just connected a HDMI-to-DVI adaptor cable to my card's DVI and I've got sound coming out of the port. I had no idea this was possible.

Errius wrote:

OT: is it normal for graphics cards to deliver audio over DVI? I just connected a HDMI-to-DVI adaptor cable to my card's DVI and I've got sound coming out of the port. I had no idea this was possible.

That's not standard as DVI does not have pins for audio signals. What is happening here is that some unused pins (DVI->HDMI can only use single link DVI, so everything for the second link is hanging around useless) have been re-purposed by a card that natively supports HDMI to transport (digital) sound over them. This requires a DVI to HDMI adaptor (not the other way round!) that has been designed for specifically this card.

Errius wrote:

OT: is it normal for graphics cards to deliver audio over DVI? I just connected a HDMI-to-DVI adaptor cable to my card's DVI and I've got sound coming out of the port. I had no idea this was possible.

Sorta. DVI and HDMI are electrically compatible and DVI is a subset of HDMI. At some point ATI (radeon HD 3000 series IIRC) and Nvidia (GTX 200 series IIRC) started to support audio over DVI as well. Technically Audio over DVI violates the DVI spec but it was done to make the use of DVI devices over HDMI easier and more convenient. The Same goes for HDCP, which is also not supposed to work over DVI, but does for the same reasons. Conversely, there are also displays that take audio and HDCP over DVI.

Another reason for this "misuse" of DVI is, that using HDMI incurs license fees, while DVI does not.

dionb wrote:

[This requires a DVI to HDMI adaptor (not the other way round!) that has been designed for specifically this card.

not in my experience. While it is technically a proprietary modification, I have never come across a card that does audio over DVI that needs a special adapter and every "ebay special" cable and adapter I have had in the past works just fine.

Yes, I'm just using a cheapo generic cable off eBay.

My HIS-RADEON 7000 PCI has DVI and VGA.
I only use VGA because it has a nearly 100% centered image on my TFT (Textmode/VGA-Lowres/EGA-LowRes)
Though it has no native Win3x Driver, but the SVGA driver from WfW works just fine. So 256colors from 640x480 up to 1024x768.
I strongly recommend that card. It has excellent performance and features for Retro-Gaming up to 800x600 32Bit.

Audio is transmitted during blanking regions in the LVDS links, no additional or special signals are needed.

dionb wrote:

I have one here. Number Nine SR9 SGRAM, with S3 Savage4 Xtreme chip and DVI-I. There are 3.1 drivers for the Savage4. […]
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I have one here. Number Nine SR9 SGRAM, with S3 Savage4 Xtreme chip and DVI-I. There are 3.1 drivers for the Savage4.

Edit: damn, this is AGP, sorry. I'll look a bit deeper...

Edit2: S3 Savage is the place to look. I found this, although it's almost certainly going to be hard to find:

Appian Graphics Gemini DVI-I PCI
http://vgamuseum.info/index.php/news/item/513 … emini-dvi-i-pci

I/O Data Savage4 cards are cheap and come in PCI + DFP variants. I'm running one with Windows 3.1.

j^aws wrote:

Matrox G200 has an addon digital daughter card, which may work in Win 3.1 as well.

Can confirm this works in Windows 3.1 with drivers.

https://commons.wikimedia.org/wiki/File:Matro … _Flat_Panel.jpg