Dual VGA graphics with DOS support

March 25, 2013 at 09:01:35
Specs: DOS
Hello, I'm looking for any dual VGA graphics card, that might be bought now (I do not mean "new", but at least PCI card), with DOS drivers? Any suggestion are welcome.
There are no special graphics requirements, only a possibility to display text on two monitors and a possibility to put into more or less modern industrial PC.

Regards


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#1
March 25, 2013 at 13:13:50
Displaying text in dos usually doesn't need special drivers. Sometimes word processing software would provide their own dos drivers for special features they might have. Other than that, any monitor and card that can display 640 x 480 will support dos text.

On a dual monitor card, as long as the ports don't need to be software or driver enabled--that is they're both 'on' at the same time--then you shouldn't have a problem.

Another option would be a Y adapter cable like this:

http://www.ebay.com/itm/HD15-VGA-Ma...

to connect two monitors to a single VGA port.


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#2
March 25, 2013 at 23:31:30
Thanks for your reply. Thats in clone mode. But the point is how to display different text on both monitors (my fault, I haven't mentioned it precisely).

Regards


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#3
March 26, 2013 at 00:36:23
Dos isn't a multi-tasking OS so I guess whatever program you're running can manipulate more than one text page at a time.

Well anyway I'm not familiar with that kind of video support in dos. Maybe someone else will post in with that information. Good luck.


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#4
March 26, 2013 at 03:54:13
If the text is generated by the same application, the program itself has options to drive a multi output video card (the only application I know is Turbo Pascal dual monitor). Otherwise, as DAVEINCAPS pointed out, being DOS a single task system you need to run the applications inside two separate virtual machines each connected to its own display. In this case the multi display card is driven by the host operating system, e.g. Windows 7, so no problem.

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