i faced issue with keyboard when i yesterday installed MX Linux (latest) as a newbie. Because default was english keyboard, when i clicked the US flag nothing happened (i thought it will offer me some language settings), i added czech keymap (click MX menu, search for keyboard, clicked Keyboard "app" and then on Layout tab add czech keymap and made sure it is above english, but that not helped to change language, i had to remove english one and then it started typing czech characters.
during boot appears message like:
Interesting log lines from /var/log files:...nerating /boot/initrd.img-4.15.0-1-amd64
/usr/bin/ckbcomp: Can not find file "symbols/cz-us-qwerty" in any known directory
Warning: error while trying to store keymap file - ignoring request to install /etc/boottime.kmap.gz
this may be an issue/bug in MX Linux, let me know if you need further commands to be run please. Thank Youboot:569:Tue Oct 30 10:00:41 2018: [....] Starting cgroup management daemon: cgmanager[....] Setting up console font and keymap.../usr/bin/ckbcomp: Can not find file "symbols/cz-us-qwerty" in any known directory
Xorg.0.log:608:[ 24.878] (**) Option "xkb_layout" "cz-us-qwerty,us"
Xorg.0.log.old:608:[ 25.510] (**) Option "xkb_layout" "cz-us-qwerty,us"