Just change the terminal, no the shell

Yeah, but unless you can make it work in an X terminal emulator too it's not going to be
terribly widely used. (I don't use fb even though non-fb is almost unreadable on my LCD screen
--- it gets the width of the screen radically wrong --- simply because, AIUI, fbdev is pretty
much incompatible with accelerated X, and I care much more about accelerated X than I do about
the tiny proportion of the time I'm using the console.)