Comment 3 for bug 945069

Looks like on 12.04 tmux is the default backend. A little digging and it seems like the ctrl-left and ctrl-right keys are bound to resize the split screen on lines 42 and 43 of /usr/share/byobu/keybindings/f-keys.tmux. Commenting these out or adding matching unbind statements to ~/.byobu/keybindings seems to have some effect.

By default, on 12.04, my ctrl-left / ctrl-right does nothing if there is no split screen. If I unbind the as above, I can move one character at a time with ctrl-left / ctrl-right. I'm guessing there is some keybinding that could be mapped to restore the previous behaviour (of 11.10), but I'm not sure what. If anyone finds it, please post here.

I don't think this is a "bug" exactly, it seems to be a "feature", although I'd sure be happy to find a way of turning it off, driving me nuts.