PCIe and PCI dual cards?

[Aaron Plattner]

On Sat, Nov 28, 2009 at 02:35:19AM -0800, Timothy S. Nelson wrote:
> On Thu, 26 Nov 2009, Jaguar Finch wrote:
> 
> > I'm trying to get a PCIe and a PCI video card to work together for a multi-monitor setup but
> > I'm getting "(EE) No devices detected.  Fatal server error:  no screens found".
> > 
> > This is under Ubunutu 9.04 and both are nvidia cards. According to the log, both cards are
> 
> [snip]
> 
> > X.Org X Server 1.6.0
> > Release Date: 2009-2-25
> 
>  	Here's your problem.  Dual screen card support was broken for quite a 
> while.  Basically, 1.6.x doesn't support them, except by accident.  I'm a 

Actually, for drivers that don't require I/O access or legacy VGA, it does
work if you specify BusIDs.  Jaguar's problem was that he was using the
lspci style of BusID rather than the X style (i.e. "bus:dev.func" rather
than "bus:dev:func").  We really ought to agree on a common BusID
formatting style and then be consistent about it.

> Fedora user, and it completely failed for me for Fedora versions maybe 9-11. 
> Xorg 1.7 (used in Fedora 12) is supposed to support multiple graphics chips. 
> So here's what I see your options to be:
> 1.	Upgrade to xorg 1.7 and see if it helps you (you may have to upgrade
>  	your whole OS to get the xorg upgrade)
> 2.	Downgrade to one of the versions that used to work (may not support
>  	modern screen cards).
> 3.	Get a screen card that supports dual monitors on one chip.  Be warned
>  	that these must be on one chip on the card; I have a screen card that
>  	supports 4 monitors, but on Fedora 11 I can only use 2 because the
>  	problem is that there are two chips on the card, and each supports two
>  	monitors, but xorg 1.6 only supports one chip at a time (except under
>  	special circumstances).
> 
>  	HTH,
> 
> 
> ---------------------------------------------------------------------
> | Name: Tim Nelson                 | Because the Creator is,        |
> | E-mail: wayland at wayland.id.au    | I am                           |
> ---------------------------------------------------------------------
> 
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