I've recently started using Ubuntu 18.04 and I am facing a very obnoxious problem - there's no way of changing the keyboard layout with ANY keyboard shortcuts, system-wide, not just in a certain program.
At first I thought that my standard shortcut (super+space) was interfering with some other shortcut containing super, but alt+shift or ctrl + shift do not function either. However, I am able to change the layout using the tray icon and the
setxkbmap command in the terminal. I have tried to set shortcuts manually through the custom shortcuts menu, using the same
setxkbmap command - no dice. I've also attempted to reconfigure the keyboard through the terminal, still no effect. Changing settings in GNOME tweaks doesn't help.
I would really like to evade any kind of reinstallations and such. If this matters in any way - I am using Unity.