RandR version 1.2 revisited

[Adam Jackson]

On Thursday 14 September 2006 23:23, Graeme Gill wrote:
>  From my perspective, this doesn't address DDC/CI concerns at all -
> getting the EDID passively doesn't help much, because what I want
> to be able to do is to communicate with the monitor using DDC/CI, so
> that I can set the monitor controls (brightness, contrast, etc.),
> to set a calibration condition.
>
> What this translates into is that ideally I would like to
> be able to send and receive the DDC/CI packets connected to
> an Output. For an example of what I'm talking about, see
> how Apple does it:
> <http://developer.apple.com/documentation/Darwin/Reference/IOKit/IOI2CInter
>face/CompositePage.html#top>

I'm aware of DDC/CI.  DI-EXT even has a bit to note if it's supported.  I'm 
happy to hook it up but that's probably creeping beyond what we want to 
accomplish with this rev of RANDR.  I definitely don't want to see DDC/CI 
done outside of X (anymore).  While X is running, it owns the display.

I'd have to look further at the command stream spec, but it should be 
straightforward to encode as an (output, message) tuple, yes?

- ajax
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