Re: [PATCH]: EDID parser

["Petr Vandrovec" <VANDROVE@vc.cvut.cz>]

On  3 Apr 03 at 18:21, Sven Luther wrote:
> On Thu, Apr 03, 2003 at 04:21:14PM +0100, Alan Cox wrote:
> > On Iau, 2003-04-03 at 15:15, Sven Luther wrote:
> > > > Read is not enough. If you have connected one /dev/fbx to two
> > > > monitors, you must find highest common denominator for them, and use
> > > > this one.
> > > 
> > > Err, i don't understand this ? Do you mean you are outputing to two
> > > monitors at the same time ?

Yes. With matroxfb you can output same signal to all three outputs.
It is default if you have g450 or g550 with recent driver.

> > > If that is so maybe you mean, speaking in graphic card terminology, and
> > > not in fbdev one, that you are sharing one common framebuffer between
> > > two outputs, right, possibly doing mirroring tricks or something such ?
> > 
> > Classic example is a SiS 6326 driving monitor and TV. You need to keep the
> > display to TV acceptable ranges.
> 
> You mean, driving both display with the same ramdac ?

See http://www.bglug.ca/matrox_tvout/g450.jpg. Two inputs, three outputs,
and almost any possible connection between them.

                                                Petr Vandrovec
                                                vandrove@vc.cvut.cz
                                                



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