bug#6713: initial-frame-alist params applied to all frames

bug#6713: initial-frame-alist params applied to all frames

[Stefan Monnier]

Package: Emacs
Version: 24.0.50

With a .emacs that contains just:

  (setq initial-frame-alist '((background-color . "grey75")))

start "emacs" and then hit C-x 5 2.  Notice that the second frame also
has a grey75 background.

OTOH my xrdb setting:

  Emacs.font:     -misc-fixed-medium-r-semicondensed--13-*-*-*-*-*-*-*

seems to only be applied to the initial frame, but not to the second frame.


        Stefan




In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2010-07-23 on ceviche
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  'CFLAGS=-Wall -Wno-pointer-sign -DUSE_LISP_UNION_TYPE -DSYNC_INPUT -DENABLE_CHECKING -DXASSERTS -DFONTSET_DEBUG -g -O1 -I/usr/include/GNUstep' 'LDFLAGS=-L/home/monnier/src/Xaw3d' 'CPPFLAGS=-I/home/monnier/src/Xaw3d' '--enable-maintainer-mode''

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bug#6713: initial-frame-alist params applied to all frames

[Chong Yidong]

Stefan Monnier <monnier@IRO.UMontreal.CA> writes:

> With a .emacs that contains just:
>
>   (setq initial-frame-alist '((background-color . "grey75")))
>
> start "emacs" and then hit C-x 5 2.  Notice that the second frame also
> has a grey75 background.

Hmm, I can't reproduce this.  For me, the second frame is white.  This
is with latest bzr sources, and `xrdb -remove' before running Emacs.

bug#6713: initial-frame-alist params applied to all frames

[Stefan Monnier]

>> With a .emacs that contains just:
>> (setq initial-frame-alist '((background-color . "grey75")))
>> start "emacs" and then hit C-x 5 2.  Notice that the second frame also
>> has a grey75 background.
> Hmm, I can't reproduce this.  For me, the second frame is white.  This
> is with latest bzr sources, and `xrdb -remove' before running Emacs.

Hmm... I tried again after "xrdb -remove" and a new "bzr update" and
"make bootstrap", but the problem persists for me.


        Stefan

bug#6713: initial-frame-alist params applied to all frames

[Stefan Monnier]

>> With a .emacs that contains just:
>> (setq initial-frame-alist '((background-color . "grey75")))
>> start "emacs" and then hit C-x 5 2.  Notice that the second frame also
>> has a grey75 background.
> Hmm, I can't reproduce this.  For me, the second frame is white.  This
> is with latest bzr sources, and `xrdb -remove' before running Emacs.

I'm still seeing this bug (which appeared back when you changed the
default-frame-alist handling):

   % src/emacs -Q --eval '(setq initial-frame-alist (quote ((background-color . "grey75"))))'
   C-x 5 2

Gives me 2 frames, both with a grey75 background.  If I change grey75 to
something else (like "red"), I get a red background in both frames.

But I recently noticed that the bug was not present on one of my
machine; which happens to be one where I was running a mix of Debian
"stable"&"testing" (because of a problem in the "testing" version of the
X11 driver).  I've now upgraded it back to "testing" and the bug is now
present there as well, so it appears to also depend on the version of
some library (probably libX11 since the bug appears both with Gtk and
Lucid toolkits).

Also the bug is not present in the emacs-23 branch, so while the version
of some library might matter, Emacs's own code also matters.


        Stefan

bug#6713: initial-frame-alist params applied to all frames

[Stefan Monnier]

Trying to come back to this bug that's been affecting my Emacs's
background for the last 6 months now ;-)

I just found out that the behavior is affected by the Xft.dpi value:

  % echo Xft.dpi: 124 | xrdb
  % emacs -Q --eval '(progn (setq initial-frame-alist (quote ((background-color . "grey75")))) (make-frame))'
  C-x 5 2

leaves me with 3 frames: the initial frame with grey75 background (yay!), and
2 frames with white background (yay!).

OTOH

  % echo Xft.dpi: 123 | xrdb
  % emacs -Q --eval '(progn (setq initial-frame-alist (quote ((background-color . "grey75")))) (make-frame))'
  C-x 5 2

leaves me with 3 frames: the initial frame with grey75 background (yay!), the
second frame with white background (yay!), but the last frame with
grey75 background (nay!).

Only the value 124 gives me the right answer, on this machine.
xdpyinfo says "96x96 dpi", so I'm not sure from where the 124 comes.

Does this ring a bell to anyone?


        Stefan