Xorg / radeon / vesa ignoring custom ModeLines bug?

Roland Scheidegger sroland at tungstengraphics.com
Thu Mar 8 04:57:02 PST 2007

José Oliver Segura wrote:
>     I'm using atitvout since everywhere I read on the web sais that
> the open source drivers from Xorg for ati chips don't support tv-out
> and I'll be happy to know that this is  not true anymore and I can use
> only Xorg to get tv-out! I'll try to experiment with the configuration
> of just one external monitor without laptop LCD.
No, that's unfortunately still true. That's a future solution :-).

>      Just curious about... If someday I get a working panel/laptop,
> is it possible to have a standard resolution, let's say, 1024x768 in
> two heads but each one with it's own modeline? Using separate sections
> for two different monitors? drivers? using metamodes? Well.. first
> I'll check the current issue.
I'm not exactly sure what you mean, but this is how normal mergedfb
clone mode works. Both heads get programmed completely independant (they
don't need to have the same resolution neither, though that wouldn't
really be "clone" mode in that case...). Such a clone setup has a
limitation with overlay for instance (only on one output), and atitvout
probably doesn't work with that.
As for blowing up panels - I'd hope not but you never know. If the
driver is configured for a crt, I'd think it disables the digital output.


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