No output from sDVO DVI

Alan Hourihane alanh at
Sun Jul 22 11:57:01 PDT 2007

On Sat, 2007-07-21 at 18:09 -0700, Keith Packard wrote:
> On Sat, 2007-07-21 at 13:11 -0700, Kevin Downey wrote:
> > I have an lcd connected to the VGA out on the motherboard and a CRT
> > using a dvi-vga adapter on the "primary" dvi out on the sdvo card.
> SDVO DVI cards are digital only, so a VGA adaptor won't work. You're
> gettin EDID because (I think) the digital and analog DDC wires are the
> same.
> I don't know if anyone makes VGA SDVO cards; I've never seen any,
> although the SDVO spec allows for them.

Yep, There are plenty about with VGA outputs on SDVO boards. They're the
ones with RGB as their output rather than TMDS for DVI.


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