Re: short display with 2.1.132-ac3, matroxfb and XF86_SVGA 3.3.3

Dirk H. Hohndel (hohndel@suse.de)
Mon, 4 Jan 1999 09:36:36 +0100 (MET)


On Mon, 4 Jan 1999, Gerd Knorr wrote:

> On Mon, 4 Jan 1999, Dirk H Hohndel wrote:
>
> > > FBDev is designed to do things the right way, ie. use acceleration
> > > when it is available (in user space of course!) or just run
> > > non-accelerated when no acceleration is available. It is very similar
> > > to the concept of the SVGA server I'd say except for letting the
> > > kernel deal with mode-switching.
> >
> > And therefore the standard XFree86 server (as of 4.0) should be made fbdev
> > aware. Don't try to move all the 3.x acceleration stuff into yet another
> > server. That's a waste of time...
>
> I've a fbdev-aware XF86_SVGA Server up and running. fbdev integrated as
> "chipset". No vga register i/o needed. Runs accelerated on top of
> matroxfb, even if the board is installed as secondary display.

THAT's the way to go. I'd like to see patches for that...

> Initializing the matrox acceleration code needs only 10 lines of code
> (fill one variable with the PCI-ID and mmap() the mmio-space). I was
> surprised that it was _that_ simple....

:-)

Dirk

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