Subject: bug#19482: Changing to big font cause display problem

From: 张海君 <[email-masked]>
Date: Thu, 01 Jan 2015 23:21:50 +0800

Open emacs, and run the following code:
(set-frame-font "Menlo:size=30")

Then text in "*scratch*" buffer disappeared and I can't make the text visible with scrolling up or down.
After resizing Emacs's window size, text is visible.

It seems that after changing font size Emacs doesn't known the real window size and so can't display
correctly.