RandR 1.3 additions?

[Luc Verhaegen]

On Tue, Jan 22, 2008 at 01:32:23PM -0500, Alex Deucher wrote:
> On Jan 22, 2008 1:26 PM, Luc Verhaegen <libv at skynet.be> wrote:
> > On Tue, Jan 22, 2008 at 06:24:58PM +0100, Matthias Hopf wrote:
> > > On Jan 22, 08 12:03:15 -0500, Alex Deucher wrote:
> > > > > > could be used as the "standard" properties for choosing an encoder
> > > > > > though.  That said I think in the long run having encoder objects is
> > > > > > clearer.  It's be nice to know that the VGA port and the TV port
> > > > > > shared the same actual encoder rather than just signal format
> > > > > > "analog."
> > > > >
> > > > > Signal formats for VGA and TV differ significantly enough. "analog" is
> > > > > certainly no valid description for a signal format, and hasn't been
> > > > > proposed in the spec update.
> > > >
> > > > Right, but my point was that you want to know which encoder is used
> > > > rather than just the signal format.  The encoder would dictate the
> > > > signal format.    Although I suppose you'd want both since it would be
> > > > nice to have a standard way of knowing the signal type as well.
> > >
> > > Hm, the encoder will vary from card to card. Yes, it would be preferable
> > > if even the encoder was abstracted, though this would be very card
> > > dependent. Feel free to add something related to my proposal, I don't
> > > have a good feeling ATM how this should look like.
> > >
> > > Matthias
> >
> > "Encoder abstraction"?
> >
> > Hasn't "encoder" been "output" all along? Output is encoder, output is
> > not connector.
> 
> By outputs I mean randr 1.2 outputs.  It depends on the driver.  On
> Intel they are one and the same as I don't think they support any
> mixed encoder outputs.  radeonhd exposes encoders.  radeon exposes
> connectors.  I'm not sure about mga.
> 
> Alex

The way i have been using the word output signifies encoder, and i have 
been using this naming excessively ever since early 2004. This is also 
what Dave Airlie cut out of the unichrome driver to fit only external 
i2c output devices, or encoders, and this is how these terms eventually 
entered the intel driver.

The fact that you saw no other option but to abuse output to mean 
connector means that there are shortcomings in the model. But this is no 
reason to change the original and most widespread meaning.

Luc Verhaegen
SUSE/Novell X Driver Developer.