That’s so strange - I’m also using Linux, but there is no such file in that directory (or anywhere else as far as I can tell).
I’m wondering if that file does not exist because, as far as I can remember, I have not used an external midi device on this machine. But if so, what other file might store this information?
Where did you get Ardour from? It is not unheard of for package maintainers for some distributions to change behaviors, would be the first time I have heard of this particular change, but not out of the question either.
Yes I’ve been wondering about that myself. I have used binaries from both Ardour and OpenSuse over the years. I’ll try the generic binary from Ardour and see if that helps.