Hello Robert,
I‘m running the same kind of HW (Terra Black Dwarf G2 with Via Nano) and having trouble with the latest ipfire version. (See Core 170: general protection fault )
I see that you you had similar problems with esrlier version and you are still on ipfire 2.19.
did you stay on purpose at this version? Wasn‘t any newer version stable??
Thanks for exchange
Regards Alex