How do I switch to Unicode entry mode?

Question

I am trying to switch into Unicode entry mode using Ctrl + Shift + U, but after I hit this combination nothing happens. I also tried Ctrl + U, Ctrl + Alt + U. Do I need to enable this mode anywhere? Or maybe it works only in certain places? I use default USA layout.

Answer 1

This feature works in all gtk+-based applications when they use the default gtk+ input method. For example, all GNOME applications, OpenOffice.org and Firefox.

However, if you have enabled IBus in order to write complex scripts, then you lose the Ctrl+Shift+U facility. You would need to disable IBus and return bug to the gtk+ input method.

Answer 2

It's a GNOME feature, and it should work for all GNOME applications.

Answer 3

You get very little feedback when you do this, but, when you hit Ctrl+Shift+U you should get an underlined u. You then enter the unicode codepoint, followed by space or enter; until you hit space or enter you'll only see the underlined u followed by the codepoint as you entered it; when you hit space or enter the whole thing is replaced by the unicode character.