Question about dual display...

[tisurame]

I would like to know, if a card with tv-out and dual display option, like Radeon, could work like this...

I want to use the s-video tv-out to display on TV the same picture that`s coming from the VGA output, both at the same time.

Since you can see the BIOS and boot screens using the s-video cable...this s-video picture would work for me to secure that I don't change my TV video mode to RGB, if I still don't get the right frequency.

It could work like this, even using DOS ?

Thanks.

[pcates]

I have one and you can get it to display on both at the same time. I have not tried it in DOS, but when the computer boots, you can see the boot sequence on the TV, so I assume that it would work in DOS also.

[tisurame]

But you can see the boot sequence on TV and on the monitor at the same time or you only can see that when you are inside Windows ?

[Crazy Cooter]

The Radeon allows display on both during the entire boot sequence.  I've also got my old GeForce 2 MX do the same (and then moved that to strictly TV use).

[tisurame]

I would like to ask another question...

Using programs that directly program the VGA signal, like AdvanceMame, AdvanceCab etc...will make any interference or stop the s-video output ?

[Crazy Cooter]

I don't know, I've never used those progs.