Update on RandR changes from DDC

Alex Deucher alexdeucher at gmail.com
Thu Jul 20 09:03:59 PDT 2006

On 7/20/06, Alan Coopersmith <alan.coopersmith at sun.com> wrote:
> Keith Packard wrote:
> > However, actual hardware has another piece in the middle, the CRTC
> > itself, which is relevant as there may be 0, 1 or 2 monitors connected
> > through each CRTC to the frame buffer.
> Or 1/2 in the case of jumbo sized monitors like the Apple 30" Cinema Display
> which takes two inputs to drive.

Does it actually require two physical connections or just a dual
channel TMDS controller over one physical connection?  That said, I
seem to recall there being some high end HP or IBM monitors that did
require multiple inputs.


> Does the new xrandr design assume there is always a 1-to-N mapping from
> viewport to output or will it allow N-to-1 mappings like this?
> --
>         -Alan Coopersmith-           alan.coopersmith at sun.com
>          Sun Microsystems, Inc. - X Window System Engineering
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