[CentOS] Dual video card, 1 monitor each (ref dual head) CentoS4.6 xorg does only 1 head

William L. Maltby CentOS4Bill at triad.rr.com
Tue Jul 22 18:55:48 UTC 2008

On Tue, 2008-07-22 at 10:43 -0700, Chris Payne wrote:
> On Tue, Jul 22, 2008 at 06:03:16AM -0400, William L. Maltby wrote:
> > Q1: Anyone have a two video card CentOS 4.6 setup working?
> <snip>

> During testing with various cards (Matrox, ATI Radeon, nVidia) I do recall 
> having all sorts of problems getting 2 ATI cards to work together in one 
> machine. I think I eventually found some documentation (not sure where :-( ) 
> that pointed to an issue where the second ATI card did not initialize 
> properly. In fact, I seem to recall an ATI card would not initialize properly 
> unless it was the primary video card, ie the ATI Radeon 7500 PCI needed to be 
> set as primary in the bios over the Matrox G450 AGP in order for both to 
> work.

Well, that offers hope if I decide to stick it in the machine with the
Nvidia. Also, I've and old Diamond S3-based card I could pair up with
one of the Radeons, set the Radeon as primary and see what happens (if I
can set it in the BIOS - I looked and don't recall seeing a setting for
it). If the BIOS has no setting, I could swap slots and see what

Thanks for the thought.

> <snip>
> --
> Chris Payne			chris.payne at triumf.ca
> <snip sig stuff>

Thanks for the time and effort Chris!


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