PCIe card not appearing when in slot #2 on a certain brand of Dell machines

[Shachar Shemesh]

I know, the subject is strange, but the truth is that the actual problem
is also strange.

At work, we have a batch of Dell machines. We also, regularly, use a
certain type of PCI-express x1 card for video capture and playback.
Strangely, on those machines, if we insert the card into slot 2 of the
machine, the card is not visible to the kernel. It does not appear on
lspci, and obviously, the driver is not loaded and does not work. Moving
the card to a different slot resolves all of the above problems. The
machine's BIOS has an option to enumerate all cards, and does see the
card without a problem.

The problem happens with Fedora Core 15, and happened on at least three
different machines, so we can rule out a machine failure.

I am at a loss as to how to even begin to debug this problem.

Shachar

-- 
Shachar Shemesh
Lingnu Open Source Consulting Ltd.
http://www.lingnu.com

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