Ralph,

Is this happening immediately after starting indi_pentax, or is there delay? The log shows that indi_pentax is dying, but doesn't really offer a hint as to why. Did you try pktriggercord by itself on the Pi and/or your Ubuntu desktop? If not, that would help narrow down the problem. You could also try running indiserver from a command prompt with camera on and plugged in: indiserver -v indi_pentax. That should give us a little more information.

Did the Pi4 solve the Bias frame problem?

I have no preference on github versus the INDI forum.

Karl

Read More...