So, when I press Ctrl + Space the OS cycles between the input layouts that I have. The problem with that is that Switch layout is Alt + Shift as default and still Ctrl + Space works.
I already search using dconf Editor and found on org.pantheon.desktop.gala.keybindings the switch-input-source, which is depracated, and there is selected ['space'] by default. I don't know why since with me Alt + Space does nothing.
I've tried to change to another key combo, but none seems to work. I really need that Ctrl + Space free to use in another software and this is on the way.
How can I change it?