On Tue, 2005-03-15 at 09:29 -0500, Jon Smirl wrote:
> Aonther approach would be to just say you have to choose to run one of
> X, DirectFB, FBUI, XGL and you can't switch between them. Other than
> developers I don't know if anyone really runs more than one of these
> at a time.

FWIW, yes we do. 

We're developing a system for neuro-scientific experiments where we
enjoy having a fast and lightweight graphics stack with access to VSYNC
interrupt (DirectFBGL) for reliable frame timing of visual stimuli.
OTOH the experimenter gets a QT control GUI running on a second graphics
card with regular X.

As this is not very common and quite a hassle to setup (e.g. X stomping
on other card's IRQ and the like) I'm eagerly following all efforts to
build a common standard graphics base with improved multi-head and GL
support.

That said, I realise that this is not a very widespread use-case. But
nonetheless there are such applications.

Thanks,
Jan



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