Ctrl + Space not working for content assist on eclipse

Question

My problem is that the content assist window won\'t pop up after clicking Ctrl + Space. I checked my shortcuts and the content assist is bound to Ctrl + S

Answer 1

I managed to fix it finally. The problem was that the ibus was overriding the shortcut so I deleted this shortcut configuration.

Type ibus in the dash:

Then select Keyboard Input Methods. From there click on the first three dots next to the Enable or disable textfield. This windows should appear:

If there is something bound to Ctrl + Space simply delete it.