[SOLVED] Raspberry 4 + moitessier hat / signalk -> opencpn: freeze

[Didier B]

After a few hours, my configuration, (with  the latest updates) couldn't give me a FIX !
Using my "gold (old) SD" card, I made a new copy to SSD, and then I updated it as follows :

1. Settings updated 2.5.0
   
2. Documentaton updated 2.0.10
   
3. OpenCPN installer updated 2.2.1 
   
4. XyGrib 1.2.6-1  (unchanged)
   
5. Signal K installer : 2.1.0 Not updated, as 2.3.0 replaces Signal K 1.26 with Signal K 1.35-2 which causes the absence of FIX !
   
6. Dashboard updated 2.2.1
   
7. Network (?) 2.1.4
   
8. Serial 2.1.0 Not updated (to keep consistency with Signal K which was not updated neither)
   
9. Then I updated openCPN to 5.2.4
   

And now, I got a configuration which works perfectly, giving me quick FIX (few sec.) at any launch, both with the old school (TCP) and newer (Signal K) connections !

I will not anticipate, and wait for a few hours to bet my life on that, but it seems that the impossibility for signal K 1.35-2 to access /dev/ttyOP_gnss (see previous screen shot) is the Gordian Knot !

EDiT 2 hours later : in facts, the simple update of Settings to 2.5.0 seems to prevent any FIX ! I had to roll back to settings 2.4.1

So my (working) configuration is Settings 2.4.1, Signal K installer 2.1.0, Signal K 1.26, Serial 2.1.0, Open CPN installer 2.2.1 and OpenCPN 5.2.0.
In that configuration both types of connections (TCP & Signal K) seem to work equally...