Hello. I'm using xschem & ngspice as the below picture. I want to look at parameters and characteristics of mosfet. but "display all" command doesn't show my mosfet. and "@Xmn[gm]" command doesn't work. On youtube tutorial of SKY130(), he coded "display all"command and it showed the mosfet. I think there is a difference between gf180mcu and sky130

Start adding

.save all

and

.options savecurrents

. device parameters like gm, vth and others need to be saved explicitly with a save instruction. See ngspice user manual, Chapter 31

@Stefan Schippers Thank you! I read manual and i got it,