If you want to use more than one video card then that implies that you need at least one that is PCI. I have had success using 5 Matrox PCI cards (all slots full).
 
EZFB has built in features for multiple video cards and an example program that will initialize and put a picture on every working frame buffer in your system.
 
http://www.akrobiz.com/ezfb/
 
James.   :o)
 
 
----- Original Message -----
From: William Estrada
To: Charles Lepple
Cc: linux-fbdev-users@lists.sourceforge.net
Sent: Monday, August 22, 2005 1:23 PM
Subject: Re: [Linux-fbdev-users] Re: Getting started

Charles,

  Thanks for the pointer.  That's was good information.

  I will be adding another video card to my system soon.  Do you know
of a URL that could help with this task?  I don't know if I will be
using a NVidia card or not.  Will the system auto-magically configure
it for this setup?


  William Estrada   --  MrUmunhum at popdial dot com  --  408-997-0743
  Ymessenger ID: MrUmunhum
  HTTP://Mt-Umunhum-Wireless.net



Charles Lepple wrote:
On 8/19/05, William Estrada <mrumunhum@popdial.com> wrote:
  
Like magic the /dev/fb and /dev/fb0
 were defined by the system (??).
    

This bit of magic is "udev". It gets messages from the kernel when
drivers are loaded, and it creates device nodes for you. When using
udev, the /dev filesystem is actually created in a ramdisk, which
explains why the device nodes disappeared when you rebooted.

  
Now I need to know how to make more Frame Buffer devices!
    

Typically, you get one frame buffer device node per video card.
(/dev/fb is probably a link to /dev/fb0)