IBM's port is "DVI - D" specification versus "DVI - I". Adapters for DVI-D are hard to come by and may not even work depending on who you believe. I just bought an adapter on ebay, but won't know if it works until I get it ... many sellers don't bother to clearly indicate 24 pin DVI - D versus 29 pin DVI - I ... I've even seen some references to "24+5 pin DVI - D" which as I see it would actually be 29 pin DVI - I. This is very annoying.
I've got an IBM thinkpad & port replicator ... on the back of the port replicator there appears to be a DVI (out) port. I bought a DVI-to-vga adapter so that I could hook a monitor up through this port, but found that the adapter does not fit the port.
The adapter has 29 pins. I've searched for adapters on various websites, they are all described the same: "29 pin DVI - I". The port on the port replicator has only 25 holes. Gee. and the horizontal blade slot is narrower than the blade on the adapter by about a millimieter. What's with IBM and their non-standard port?
Does anybody know anything about IBM port replicators? Are there other, variant or older, DVI specifications that IBM may be hewing to here? Or is this an IBM-proprietary one-off? I've already checked IBM.com itself, they have no information nor do they offer their own DVI-to-VGA adapter ... they sell a Belkin adapter, which is what I bought, which doesn't fit.

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