Re: [PATCH] neofb patches

[Otto Solares <solca@guug.org>]

On Wed, Apr 28, 2004 at 08:54:47AM +0800, Antonino A. Daplas wrote:
> On Wednesday 28 April 2004 08:29, Otto Solares wrote:
> > On Tue, Apr 27, 2004 at 07:46:33PM -0400, John Zielinski wrote:
> > > An added bonus is that if you have multiple video cards or a dual head
> > > configuration with each head on a different fbx device the 5,255 device
> > > would figure out which console you are on when you start the program and
> > > use the appropriate fb device.  Once the radeon dual head code gets
> > > written I'll have to try to start X on fb0 (head 1) and leave the fbcon
> > > running on fb1 (head two).
> >
> > I was wondering if it is possible currently (kernel 2.6.5) to
> > have 2 differents video cards in 2 differents VCs and in 2
> > differents fbdev's.  I have an old trident pci card and one
> > radeon agp card.  I want to run X (Xfbdev) in the trident one
> > and mesa-solo in the radeon one, is that possible? how?
> >
> 
> Yes, I've tried that in 2.5.x, assuming nothing broke in between.  You need a 
> utility to map which console to which fbdev (con2fbmap?).  However, you can't 
> use them simultaneously (switching to one console inactivates the other), 
> that's for the ruby project.

I have written a graphics server that scans for video cards (via
libHAL from fd.o) and spawns a thread for each card, I have the
support in place for differents cards (with multi-desktops or
Xinerama like in the same box).  All I want to acomplish is to
have 2 (or more) differents fbdevs rendering to different monitors
in the same time.  Currently my server enables DRI (old mesa-solo)
for supported cards (mostly AGP ones) or mesa-fbdev for unaccelerated
ones.  The problem is that without X i can access only the primary
card (the one set it up in the bios) but if i try to load the fbdev
module for the second card it simply will not work.

-otto



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