bug#18912: 24.4; mode-line corruption on graphical frames in dual-headed display

[Eli Zaretskii]

> Date: Mon, 03 Nov 2014 22:29:57 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 18912@debbugs.gnu.org
> 
> What happens in the "good" configuration if you decrease or increase
> the frame height there by 1 pixel?

Also, what does the following display in both "good" and "bad"
configurations in the first frame displayed by "emacs -Q" that has the
original, unaltered by 1-pixel changes, size?

  M-: (pos-visible-in-window-p t nil t) RET

Please invoke this after "C-x d" in each case.