[Patch] Allow to configure RANDR 1.2 outputs with no device attached

Nicolas Mailhot nicolas.mailhot at laposte.net
Mon Mar 12 12:05:03 PDT 2007

Le lundi 12 mars 2007 à 11:32 -0700, Keith Packard a écrit :
> On Mon, 2007-03-12 at 18:34 +0100, Nicolas Mailhot wrote:
> > A TV-out (or its modern equivalent DVI/HDMI connected
> > Plasma/LCD/videoprojector) will be off most of the time. That does not
> > mean it should not be preconfigured.
> There's a difference between 'off' and 'disconnected'. The DDC spec says
> that the monitor should be able to draw enough power from the link to
> power the DDC core and respond to EDID queries, even if the monitor is
> unplugged.

And there you can add DMI/HDMI switches to the mix ;) Monitor off and
routed elsewhere (possibly behind a *long* cable too)

> The question here is what modes we should offer when no monitor is
> present and we haven't any idea what modes a potential future monitor
> will support.

I that scenario the "future" monitor is always the "past" monitor (or
part or a small monitor list)

Nicolas Mailhot

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