This post will have a very small audience, but that audience will be very interested
So i upgraded my cygwin and it broke character display in the julia repl. What was particularly annoying is that the dataframe print outs were now a collection of garbage.
A kind soul on the cygwin mailing list suggested downgrading the “cygwin” package, it’s a package accessible from the main installer in the base category, to version 3.07.
Problem solved.
edit: i should add that this fixes the character display in mintty AND the x-window terminals.