Physical ouptut sizes

Nicolas Mailhot nicolas.mailhot at laposte.net
Sat Oct 7 03:52:13 PDT 2006


Le vendredi 06 octobre 2006 à 10:33 -0700, Keith Packard a écrit :
> On Fri, 2006-10-06 at 12:06 +0200, Matthias Hopf wrote:
> 
> > Well, if running a 16:9 mode on a 4:3 monitor, you do have a physical
> > (sub-)size that is different to the monitor...
> 
> Yeah, I hadn't thought of that. We could punt and just report the
> 'maximum' size as EDID does. I'd hate to try and figure out precisely
> what a monitor is going to do with an arbitrary modeline; CRTs often
> shift images around, and of course, LCDs often do weird things with
> analog signals.

Actually, there are not so many ways to handle this, and they seem well
standardised (pan-and-scan and friends). You only need to specify in the
monitor settings its preferred strategy. I wouldn't worry too much about
CRTs - they'll be extinct soon, or will have to learn to emulate LCDs.

> Does this matter much?

It will increasingly. Everything is 4:3 is just not true anymore.

-- 
Nicolas Mailhot




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