GNU bug report logs - #33686
25.1; desktop-mode restore, issue with frame size

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Norman Ramsey <nr <at> cs.tufts.edu>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1; desktop-mode restore, issue with frame size
Date: Sun, 09 Dec 2018 10:59:04 -0500

I'm using (desktop-save-mode 1) to save a session which I then reload,
but logging in remotely from a different machine with a different
resolution display. Something stored in the desktop winds up setting
frame width to 150 characters rather than the 87 characters it was saved
with.  Height seems unaffected.

In detail:

  - Start emacs on machine `homedog` with one monitor, resolution
    3840x2160. 
  - Exit emacs, writing .desktop file.
  - Remote login to `homedog` from machine `jar`, using `ssh -X` to
    forward the X server connection.  Machine `jar` has one monitor,
    resolution 1920x1200.  
  - Start emacs on homedog, but with DISPLAY environment variable set to
    `localhost:10.0`, which is the forwarded X connection.

When the dust settles after initialization, the emacs frame seems to be
about the right height, but it is much wider than it should be.

Interestingly, if I go in the opposite direction---save the desktop
while the display is on `jar`, then relaunch emacs from `homedog` with
its native display, there are no issues.

The waters are muddy here.  I see a number of frame-size changes on
startup, which I imagine have to do with interactions between
desktop-mode and font-size setting.  I had hoped to poke at it and come
up with a workaround, but appeal to
https://emacs.stackexchange.com/questions/46274/how-to-get-desktop-read-to-ignore-modify-frame-size
produced only the suggestion that I file a bug report.

My Emacs Lisp skills are limited, and this issue is not show-stopping,
as I can always resize the window after startup.  But if you have
suggestions about how I might come up with better information, please
let me know.


Norman Ramsey




In GNU Emacs 25.1.1 (i686-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-09-15, modified by Debian built on x86-grnet-01
Windowing system distributor 'The X.Org Foundation', version 11.0.11902000
System Description:	Debian GNU/Linux 9.5 (stretch)

Configured using:
 'configure --build i686-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/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --build i686-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/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --with-x=yes --with-x-toolkit=gtk3
 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -fdebug-prefix-map=/build/emacs25-JUSXUp/emacs25-25.1+1=. -fstack-protector-strong
 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LC_ALL: en_US.utf8
  locale-coding-system: utf-8-unix

Major mode: Dired by name

Minor modes in effect:
  text-scale-mode: t
  desktop-save-mode: t
  diff-auto-refine-mode: t
  show-paren-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  mouse-wheel-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
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Desktop lazily opening solo.lua (187 remaining)...done
Desktop lazily opening mail-gradescope-grades (186 remaining)...done
Desktop lazily opening lambda.txt (185 remaining)...done
Desktop lazily opening students.txt (184 remaining)...done
Desktop lazily opening sml.txt (183 remaining)...done
Desktop lazily opening solution.sml (182 remaining)...done
Desktop lazily opening freetests.sml (181 remaining)...done
Desktop lazily opening agstest.sml (180 remaining)...done
Desktop lazily opening solution.sml (179 remaining)...done
Desktop lazily opening lams.sml (178 remaining)...done

Load-path shadows:
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Memory information:
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