How can I switch input language with CapsLock on Ubuntu 18.04? For some reason when I try to set CapsLock as a switching key it enables Caps, but doesn't set it as switching language key.
When this window is open and I press Caps, the LED light switches on and off. But the key isn't registered.
Update: As explained in the linked post, you have to use Gnome Tweak Tool to change these settings.
sudo apt install gnome-tweak-tool
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