Direct after enabling the realtime tracking ('Start Realtime Tracking' from a GPS layer) viking crashes. After the crash gpsd is still up and running.
gpsctl:SHOUT: /dev/ttyUSB3 identified as SiRF binary at 4800
I'm not sure if the crash is releated to the setting of the GPS receiver. The device is providing SiRF binary data. xgps/tangogps are working properly.