George Yashin (Georgii Iashin)

yes, thank you

I suspect that the issue is due to missing ngspice executable in PATH, could you run ngspice from terminal using the same command?

There is no latest ngspice version distribution for Ubuntu as far as I know (on the ngspice official website). You can compile it from scratch, but there are available packages...

I can confirm that it works, and the more surprisingly, the performance is better than under WSL2 with Xwayland.

Hello, I also faced with this issue, and the only solution is to add explicit ground reference everywhere.

I will check it out, thank you.