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Re: [ecs] PCI and PCIE VGA coexistence ? Kevin Keane Sat, 05 Nov 2005 22:40:15 -0800

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On Fri, 2005-11-04 at 08:32 -0800, Mark Gilmore wrote:
> Hi all,
> I was wondering if "anyone" (which usually means Ingo :-))

Ingo is no more ;-)

I recently had my name legally changed to Kevin. Finally, everybody
knows both how to spell it and how to pronounce it ;-) But I'm still the
same person. Just more dangerous: I can finally vote.

> had a theory regarding this problem:
> I am attempting to run Knoppix with both the onboard VGA and a PCI-EXPRESS 
> VGA card.
> 
> When I setup the BIOS to use the onboard VGA as the primary, the PCIE card 
> does not "appear" on the PCI bus (in /proc/pci (or scanpci).
> And when I setup the BIOS to use the PCIE VGA as the primary, the onboard 
> VGA does not appear
> (though a 3rd PCI/VGA card *will* appear).
> 
> To state another way, a primary onboard VGA will make a secondary PCIE VGA 
> "disappear",
> and a primary PCIE VGA will make the onboard VGA disappear (but not a 3rd 
> PCI VGA).

My first question would be if it works with Windows? That would tell you
whether it's a hardware/BIOS problem or an operating system problem.

The second thing would be to look up the specific motherboard and the
specific PCIE VGA card in google and see if anybody reported any
incompatibilities.

Kevin (the man formerly known as Ingo)

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