--- Ryan Underwood <[EMAIL PROTECTED]> wrote:
> 
> On Wed, Jan 21, 2004 at 01:08:10PM -0800, Alex Deucher wrote:
> > > 
> > > - Is only the G550 capable of swapping CRTC<->DAC mapping or can
> the
> > >   G400 or G450 do it too?
> > 
> > Not sure.  I think the g450 and g550 are about the same expect for
> the
> > 3D engine and support for DVI.  I suspect the g450 can do it, I
> don't
> > know about the g400.
> 
> It looks like G400 is a static mapping (CRTC2->DAC2) but it appears
> some
> strange things can be done with the G450/G550 i.e. to display
> backend-scaler output on the second head.  Also, the HAL seems to
> support TV cables plugged into the first head and DVI into the
> second,
> which as far as I know would imply a CRTC swap; afaik CRTC1 can only
> output DVI/analog and CRTC2 can only output TV or analog. (is this
> right??)

Sounds right, but your best bet it to ask Ville or Petr or on one of
the directfb ML's as they are more familiar with the hardware.

> 
> > > - G450/G550 tv-out works without the HAL? (I think this is
> easier,
> > > since
> > >   maven is integrated on these chips...)
> > 
> > tv-out is not supported at all on g450/550, neither with HAL nor
> > without.  
> 
> Okay, this is also something that matroxfb can do, so I suspect it
> will
> be related to shoving some registers at maven to get it working.
> 

yeah the second dac and tv controller are integrated on the newer
cards.

> > > - what about the DVI addons for the G200 and single head G400?
> > >   Of course, I've never actually seen one of these.
> > 
> > I'm not sure. the add on cards might have their own tmds chip on
> them
> > since I don't think the g200 or 400 or even 450 had a built in tmds
> > controller.  I could be wrong though.  I've never seen one either.
> 
> Looks like the DVI addon on G400 uses CRTC2 so it won't work at the
> same
> time with TV output.  Still no idea about the G200.
> 
> I noticed Matrox has a "single head to dual head" G450 upgrade that
> involves a cable and entering a registration key into windows. 
> Hardware
> crippled intentionally by software?  Bah...
> 
> -- 
> Ryan Underwood, <[EMAIL PROTECTED]>
> 

> ATTACHMENT part 2 application/pgp-signature name=signature.asc



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