[linux-audio-dev] Two or more monitors) Re: Project:modularsynth editor

[Martijn Sipkema]

> > [...]
> > > Xinerama _does_ support open GL, at least with my matrox card, I can
have
> > > openGL on one monitor of the two. That is a limitation of the card
> > > hardware, AFAIK, not of X.
> >
> > I doubt this is a hardware limitation. The hardware just renders to AGP
or
> > local memory. I may be wrong though...
>
> IIRC Matrox cards have a way of making a single framebuffer (with xinerama
> hints) that appears on two monitors. That way you should get 3d accel on
> both displays.

Using a single framebuffer for both outputs should be possibble by setting
the
correct pitch (add with of other screen as padding) and start address I
think.
This would require both screens to have the same framebuffer confiuration,
i.e. pixel format.

--ms