I have also been experiencing problems with the gpsd driver. On Stellarmate and Astroberry, Indi often has difficulty connecting reading from the GPS. Running cgps in a terminal window shows the GPS reporting data continuously but Indi shows no data. When it does show position and time fix from the GPS, cgps shows the time updating continuously, but when the GPS refresh button is pressed, the Indi control panel time is unchanged but the Kstars time is reset to the time in the Indi control panel. I think the Indi control panel time may be updated but very rarely. Once the GPS connection stops updating, the Indi server must be stopped and restarted to reestablish the connection. For that reason, the refresh interval must always be set to 0. Does this sound similar or related to your issue?
What is chronyc and what is the Astroberry virtual GPS service?

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