Here is 100% reproducible test case: run emacs -q -mm -l test.el with the attached test.el, and notice that the mouse pointer is banished to the middle of the frame. Afterwards manually executing `M-x toggle-frame-maximized RET' twice fixes the frame dimensions. This happens in GNU Emacs 25.0.50.1 (x86_64-linux-gnu, GTK+ Version 2.24.23) Repository revision: 52afe0cfa248053c96e26bc67bdc427945358655 Windowing system distributor `The X.Org Foundation', version 11.0.11501000 System Description: Linux Mint 17 Qiana ================================================================ `window--dump-frame' outputs: frame pixel: 1366 x 718 cols/lines: 170 x 42 units: 6 x 10 frame text pixel: 1350 x 718 cols/lines: 168 x 42 tool: 0 scroll: 0/0 fringe: 16 border: 0 right: 0 bottom: 0 #<window 3 on *scratch*> parent: nil pixel left: 0 top: 0 size: 1366 x 708 new: 708 char left: 0 top: 0 size: 170 x 71 new: 71 normal: 1.0 x 1.0 new: 1.0 body pixel: 1350 x 698 char: 225 x 69 width left fringe: 8 left margin: 0 right margin: 0 width right fringe: 8 scroll-bar: 0 divider: 0 height header-line: 0 mode-line: 10 divider: 0 #<window 4 on *Minibuf-0*> parent: nil pixel left: 0 top: 708 size: 1366 x 10 new: 0 char left: 0 top: 71 size: 1366 x 1 new: 1 normal: 1.0 x 1.0 new: 0 body pixel: 1350 x 10 char: 225 x 1 width left fringe: 8 left margin: 0 right margin: 0 width right fringe: 8 scroll-bar: 0 divider: 0 height header-line: 0 mode-line: 0 divider: 0 ================================================================ `window--dump-frame' outputs after manually calling `toggle-frame-maximized' twice that fixes the frame dimensions: frame pixel: 1366 x 718 cols/lines: 227 x 71 units: 6 x 10 frame text pixel: 1350 x 718 cols/lines: 225 x 71 tool: 0 scroll: 0/0 fringe: 16 border: 0 right: 0 bottom: 0 #<window 3 on *scratch*> parent: nil pixel left: 0 top: 0 size: 1366 x 708 new: 708 char left: 0 top: 0 size: 227 x 71 new: 71 normal: 1.0 x 1.0 new: 1.0 body pixel: 1350 x 698 char: 225 x 69 width left fringe: 8 left margin: 0 right margin: 0 width right fringe: 8 scroll-bar: 0 divider: 0 height header-line: 0 mode-line: 10 divider: 0 #<window 4 on *Minibuf-0*> parent: nil pixel left: 0 top: 708 size: 1366 x 10 new: 0 char left: 0 top: 71 size: 1366 x 1 new: 1 normal: 1.0 x 1.0 new: 0 body pixel: 1350 x 10 char: 225 x 1 width left fringe: 8 left margin: 0 right margin: 0 width right fringe: 8 scroll-bar: 0 divider: 0 height header-line: 0 mode-line: 0 divider: 0 ================================================================
test.el
Description: application/emacs-lisp
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