Hi Mark,

You are using PHD or PHD2?
In PHD2, on the 'Connect Equipment' chose INID Camera (DSI CCD) (or close to this string).
This assumes you do have the INDI_DSI_CCD driver loaded, as you mention "I can see my DSI under EKOS"

A quick tutorial
www.amateurastrophotography.com/astrophotography-guiding-p2

Gene

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