7i73 LCD shows rubisch

One thing more
If I stop the program the scrambling stops and stays constant till i start another lcnc program.
Mike

I think the thing that would help most as Andy says is seeing if its fixed by going back to 2.7

Hi PCW
Hope you do not ask me to do that.
I'm very happy to have finally a 2.8 running.
And as linux is not easy for me i fear to try going back.
Mike

Mike_Eitel wrote: One thing more
If I stop the program the scrambling stops and stays constant till i start another lcnc program.
Mike

That's even more baffling, because the smart-serial updates go out every 1mS whether a program is running or not.

For me that is a proof that either in the composing ( making the string) or the transmission something happens. As soon as the data transfer to the 7i73 stops ( red light on my panel) the scrambling stops. Pushing the string must have probably missing characters. When adding the scrambling would probably show some moving effects. But as the video shows it is somehow quite random.

Why do you think that the data transfer stops when you stop the programme?

Maybe we are talking at crossed-purposes. Do you mean stopping the G-code programme or actually stopping LinuxCNC?