On what platform are you running Linux? (PC, RasPi, etc.)
My LXterminal works okay with Unicode. I can even echo ☠.
may you copy the content of your
/etc/vconsole.conf and output of this code
setxkbmap -print -verbose 10
to here ?
can not locate /etc/vconsole
setxkbmap -print -verbose 10 prints:
setting verbose level to 10
XKB extension not present on :1.0