I don't type in English on purpose,
and I really want to search questions before asking,
but I can't use chewing input for chinese searching.
Here is my question,
I suddenlly can't switch to chewing input from English.
This happened after I logged out and in.
Before logging out,
I remember I installed Virtual Box and try to learn something,
then VB asked me something about keyboard or typing..
(not sure about what happened exactly)
And I say YES to some settings..probably..?
This is the only clue I have.
I can see the chewing icon if I press SUPER+SPACE key,
https://i.imgur.com/BMWXY7i.png
but I can't type any chinese out,
It is still English.
BTW, I am using Ubuntu 18.04.