After sleeping on the matter, I decided to say, to hell with the GPS. Since I have to enter the time and location every time I start the mount, I could just go with that, and use the "Mount updates KStars" for time and date setting. That would cover most of it. The only thing missing would be updating the system clock. I could live with that.

In any case that would fulfill your first test item. I will send you logs and screenshots. Then I would go back to trying the GPS, both after startup and before, and send those logs and screenshots and the other information you request.

But I am still wondering, what is going on on the system level here? Why doies tthe system decide that /dev/ttyUSB0 is no good, and set up /dev/ttyUSB1 instead? KStars and INDI logs provide no information on that, even at the most verbose level. Something is causing that to happen and I wonder if system logs would record some useful information about this.

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