A while after installing ubuntu 18.04 I was prompted to select a keyboard shortcut for switching between keyboard layouts.
I choose Alt+Shift. The results are really annoying as they render any keyboard shortcut that uses these two keys unusable (such as Alt+TAB+Shift to return to previous app).
I am not sure what is the program that controls this keyboard shortcut, as the one shown in gnome settings is Super+Space.
Is there anyway to find the responsible program?