In one of our previous posts titled, “Using a DVI to VGA converter with a VGA CAT5E or CAT6 extenders, does this work?” we talked about using a DVI to VGA converter and one of our readers mentioned to ensure you use a DVI-A instead of a DVI-D adaptor.

Funnily enough, one of our clients encountered an issue regarding this. The client wanted to convert the DVI cable to VGA so that they can connect a PC to a KVM switch which only had a VGA connector.  So they purchased a DVI to VGA convertor and when they tried connecting the convertor to the DVI cable it wouldn’t fit. Upon inspecting the cable and connector here’s what I saw:

So basically, the top connector was the DVI cable, which has the DVI-D pinout (dual uplink) and the bottom is the DVI to VGA converter which has the DVI-A pinout. If you tried connecting these two it would not work. The pinouts on the DVI-A has an additional 4 pins at each corner as shown here:

vga pinouts

Guess what the outcome was?

Feel free to submit your answer as a comment.

Category: Digital Signage Blog News

For those techies out there or for someone who has already tried this, does a DVI to VGA converter work with a VGA extender.

So as an example, we have a digital signage player or PC that has a DVI port ONLY. We plug a DVI to VGA extender, so the output is VGA. We then use a pair of VGA to CAT5E or CAT6 extenders and connect the other end to the monitor that is VGA. Does this work?

We would like to hear other techies out there what the result would be or whether this is technically possible.

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Category: Digital Signage Techie