What about Emacs 25.1 ?

Emacs 25.1 breaks font-height! No longer works from ~/.emacs. Really normal??

Well, where do I go? Emacs Bugzilla? I dont understand what is it!

Hi
Is it emacs/system or the desktop environment, in cases like this if you create a fresh user and login as that user, does it duplicate?

If so, then head over to openSUSE:Submitting bug reports - openSUSE and create a bug

https://lists.gnu.org/archive/html/bug-gnu-emacs/2016-09/msg00658.html

(defun font-bugfix ()
  (interactive)
  "Fix default font bug in Emacs 25.1"
  (set-frame-font "Droid Sans Mono 14"))
(font-bugfix)