GNU bug report logs - #17876
24.3; Incorrect frame resize

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Package: emacs; Reported by: penthief <penthief@HIDDEN>; dated Sun, 29 Jun 2014 17:48:04 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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Date: Sun, 29 Jun 2014 15:50:54 +0100
From: penthief <penthief@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 24.3; Incorrect frame resize
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When setting the a font on a frame after a resize, there is an apparent
race condition that more often than not, causes the frame height and/or 
width to be reset to an incorrect value.

This behaviour also occurs on 24.3.92.

1. Create a file bug-frame-resize.el with the following contents 
(assuming that Courier and Monaco are present on the system).

(setq -last-used-font nil)
(setq -target-font-1 "Courier")
(setq -target-font-2 "Monaco")
(setq -target-height 5)
(setq -target-width 5)

(defun bug-frame-resize ()
   (interactive)
   (with-selected-frame (make-frame)
     (set-frame-width (selected-frame) -target-width)
     (set-frame-height (selected-frame) -target-height)
     (let ((target-font (if (equal -last-used-font -target-font-1)
			   -target-font-2
			 -target-font-1)))
       (setq -last-used-font target-font)
       (set-frame-font target-font))))

2. Start emacs

$ /usr/bin/emacs24-x -Q -l bug-frame-resize.el

3. Type "M-x bug-frame-resize" four or five times.

The frames appear with the correct size briefly, but then resize after a 
split second. On this machine this usually results one of the height or 
width is incorrect on each of the created frames.

The bug requires the font to be changed when creating the frame.

In GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7)
  of 2014-03-07 on lamiak, modified by Debian
Windowing system distributor `The X.Org Foundation', version 
11.0.11501000
System Description:	Ubuntu 14.04 LTS

Configured using:
  `configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu'
  '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
  '--localstatedir=/var/lib' '--infodir=/usr/share/info'
  '--mandir=/usr/share/man' '--with-pop=yes'
  
'--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.3/site-lisp:/usr/share/emacs/site-lisp'
  '--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
  '--with-x-toolkit=gtk3' '--with-toolkit-scroll-bars'
  'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
  --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
  'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'
  'CPPFLAGS=-D_FORTIFY_SOURCE=2''

Important settings:
   value of $LC_CTYPE: en_US.UTF-8
   value of $LANG: en_US.UTF-8
   value of $XMODIFIERS: @im=ibus
   locale-coding-system: utf-8-unix
   default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
   tooltip-mode: t
   mouse-wheel-mode: t
   tool-bar-mode: t
   menu-bar-mode: t
   file-name-shadow-mode: t
   global-font-lock-mode: t
   font-lock-mode: t
   blink-cursor-mode: t
   auto-composition-mode: t
   auto-encryption-mode: t
   auto-compression-mode: t
   line-number-mode: t
   transient-mark-mode: t

Recent input:
M-x r e - e - b <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

Features:
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easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode register page menu-bar
rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax
facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak
czech european ethiopic indian cyrillic chinese case-table epa-hook
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cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
make-network-process dbusbind dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)





Acknowledgement sent to penthief <penthief@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#17876; Package emacs. Full text available.
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Last modified: Fri, 31 Oct 2014 17:00:04 UTC

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