Ubuntu 18.04. How to set language (keyboard layout) change to Ctrl+Shift?

Question

I found Keyboards Shortcuts but it only accepts combos with 3 buttons (Ctrl+Shift+?), even for those where originally only 2 buttons are used (like original combo Super + Space).

So I can't change Super+Space to Ctrl+Shift or Alt+Shift.

Can anyone explain why this is?

Solution 1

Install Tweaks (package: gnome-tweaks). Then use Tweaks to set an alternative layout switcher.

Solution 2

The full sequence of actions would be: Ctrl+Alt+T

 sudo apt-get install gnome-tweak-tool
 gnome-tweaks

then in the window Keyboard&Mouse -> Additional Layout Options -> Switching to another layout

Comments

[Gunnar Hjalmarsson]

On which desktop environment does it work like that?

[AntonZi]

It only accepts 3 pressed keys. That is the problem.

[singrium]

It works on Gnome

[AntonZi]

Strangely, it accepts Ctrl+Print, but doesn't accept Ctrl+Shift. And I can't make Printscreen of that dialog, as it accepts the combo Print or Ctrl+Print, instead of actually doing a Printscreen.

[singrium]

I voted for the answer proposed by @Gunnar Hjalmarsson, since it answers your question.

[Mohammad Torkashvand]

Tanks a lot. it save me from buggy ubuntu 18.04.1 layout switcher.