23.0.60; Setting font during startup makes emacs window enormous

[Alec Berryman]

When I start up emacs with the following configuration item:

(when window-system
  (set-default-font "DejaVu Sans Mono-14"))

the emacs window created is larger than my screen.  When I comment it out, it
comes up at a reasonable size.

It appears that when the new font is selected, emacs keeps the same relative
window dimensions even though the font choice means fewer lines/columns.  I'm
using a tiling window manager, xmonad, which lays out windows automatically
according to a predefined specification; in this case, I've asked it to make
all windows full-screen by default.  When I resize the windows on the screen by
changing the layout specification, emacs is drawn correctly.

This behavior isn't more than a few weeks old; I haven't rebuilt emacs in a
while, but it worked previously.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/home/alec/local/emacs/share/emacs/23.0.60/etc/DEBUG for instructions.


In GNU Emacs 23.0.60.8 (x86_64-unknown-linux-gnu, GTK+ Version 2.12.5)
 of 2008-03-09 on barry
Windowing system distributor `The X.Org Foundation', version 11.0.10300000
configured using `configure  '--with-x-toolkit=gtk' '--enable-font-backend' 
'--prefix=/home/alec/local/emacs''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  iswitchb-mode: t
  partial-completion-mode: t
  recentf-mode: t
  show-paren-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

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

Recent messages:
Loading /home/alec/.emacs.d/lisp-settings.el (source)...done
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Loading 
/home/alec/other-code/non-vc/libraries/emacs/haskell-mode/haskell-mode-2.3/haskell-site-file.el
 (source)...done
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For information about GNU Emacs and the GNU system, type C-h C-a.