RE: How to restore the layout?

[Drew Adams]

>  > AFAIK, you will never be able to get rid of the frame created initially,
>  > which has its own minibuffer.  That was the point here.  If you want a
>  > standalone minibuffer frame, and if you want it to be the only such
>  > (which I would again argue is the typical case of MF users), then AFAIK
>  > you must create the MF at the outset.
>
> (let ((frame (selected-frame))
>        frame-1 frame-2)
>    (setq frame-1 (make-frame '((minibuffer . only))))
>    (setq default-minibuffer-frame frame-1)
>    (setq frame-2 (make-frame '((minibuffer . none))))
>    (delete-frame frame))

(Similar reply from Juanma.)

I stand corrected; thanks.  And it is the case in older Emacs versions also.
Dunno what exactly I was thinking of.  Sorry for the misinformation, and
thanks for the correction.