Re : SDVO/ADD2 TV out - yes or no?

manu eallaud at
Wed Jul 18 17:12:29 PDT 2007

On 07/18/2007 03:14:55 PM, Keith Packard wrote:
> On Wed, 2007-07-18 at 09:44 +0100, Nicolas Will wrote:
> > So, if i get the current git, I have a hope of using HDMI?
> Yes, HDMI is the same as DVI from the perspective of the SDVO system.
> Of course, I say that, and yet my HDMI card isn't working with my HDMI
> monitor. Plugging the same monitor in to a DVI card using the DVI
> connector works just fine. I'll get an HDMI/DVI converter and see
> whether the card or the monitor is at fault here (the monitor appears
> to
> work completely differently using the HDMI connector, so I can't rule
> it
> out as the source of the trouble).
> > So, is it safe to say that the i810 driver has zero support for
> Not exactly, the i810 driver relies on the BIOS for all mode setting
> support, and the BIOS has SDVO support for some outputs. The big
> problem
> is that the BIOS has only a few modes pre-programmed, and you can't
> easily select other modes, although the 915resolution program can
> smash
> the BIOS tables and get it to generate modes some of the time.
> However,
> TV out support in the BIOS is fairly primitive; I'm not sure it will
> do
> anything other than standard NTSC.

Do you mean that eg gm965 motherboards that have no DVI will not be  
able to drive correctly ADD2 (or ADD2+ I do not remember)?
I mean is getting DVI out from gm965 a problem if you want to drive  
your HD[-ready] lcd?


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