How to re-enable function keys in byobu?

Note: This only works if you're using Byobu with tmux as the back-end. See other answers for Byobu with screen as the back-end.

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Just press Shift+F12 To toggle F-keys on and off.

Example : Launch htop (within a Byobu pane of course) then enter Shift+F12, then if you press F3 you will search in htop processes, not switch to the left Byobu window/pane.

Related question with answer also for screen.

You can also toggle between the f-keys bindings and the screen-escape-keys bindings using:

ctrl-a-!

We can attempt to debug your particular problem, however it would be much easier to just clean out your Byobu configuration and start clean:

rm -rf ~/.byobu

On 11.04, you'll also need to remove the folder this symlink points to:

rm -rf ~/.local/share/byobu

And then start byobu.