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bug#8687: 23.3.50; Emacs doesn't properly initialize a TTY when resuming
From: |
Courtney Bane |
Subject: |
bug#8687: 23.3.50; Emacs doesn't properly initialize a TTY when resuming it |
Date: |
Tue, 17 May 2011 17:12:33 -0500 |
When an Emacs server resumes a suspended frame on a TTY, it doesn't
switch back to the alternate screen. This causes the UI to still be
visible on the screen after closing the frame, which doesn't match the
behavior of a normal Emacs session. This occurs in the 23.3 release, and
in the latest versions on the "emacs-23" and "trunk" BZR branches.
I have attached a patch which allows Emacs to switch back to the
alternate screen when resuming a TTY frame.
Steps to reproduce:
($ == type at shell prompt; <> == commands for Emacs; # == comments)
$ emacs -Q --daemon
$ emacsclient -t
<press C-z to suspend frame>
# frame suspends, exiting alternate screen
$ fg
# Emacs resumes, but hasn't switched to alternate screen
<press C-x C-c to close frame>
# Emacs closes the frame, but the UI is still visible because it wasn't
# drawn on the alternate screen
What should happen:
An Emacs daemon should behave like a normal Emacs session.
Regular (non-server) Emacs behavior:
$ emacs -Q
<press C-z>
# Emacs exits the alternate screen and suspends
$ fg
# Emacs resumes, switching to alternate screen
<press C-x C-c>
# Emacs exits the alternate screen and quits
Desired client/server behavior:
$ emacs -Q --daemon
$ emacsclient -t
<press C-z to suspend frame>
# frame suspends, and exits alternate screen
$ fg
# Emacs resumes, and switches back to alternate screen
<press C-x C-c to close frame>
# Emacs closes the frame, and exits the alternate screen
In GNU Emacs 23.3.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.4)
of 2011-05-17 on titan
configured using `configure '--prefix=/tmp/emacs''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: C
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:
show-paren-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: 1
line-number-mode: 1
transient-mark-mode: t
Recent input:
ESC x r e p o r t SPC b u g RET
Recent messages:
("/tmp/emacs/bin/emacs")
Ido mode enabled
For information about GNU Emacs and the GNU system, type <f1> C-a.
Load-path shadows:
None found.
Features:
(shadow sort mail-extr message sendmail ecomplete rfc822 mml easymenu
mml-sec password-cache mm-decode mm-bodies mm-encode mailcap mail-parse
rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util
netrc time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock
sha1 hex-util hashcash mail-utils warnings emacsbug cc-styles cc-align
cc-engine cc-vars cc-defs regexp-opt jcb-bindings windmove edmacro
kmacro jcb-variables variables jcb-defuns imenu ffap saveplace ido paren
uniquify advice help-fns advice-preload column-marker tooltip ediff-hook
vc-hooks lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd
fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer
select scroll-bar mldrag 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
jka-cmpr-hook help simple abbrev loaddefs button minibuffer faces
cus-face files text-properties overlay md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote
make-network-process dbusbind system-font-setting font-render-setting
gtk x-toolkit x multi-tty emacs)
set-hooks-on-resume.diff
Description: Patch to restore hooks before reinitializing TTY
- bug#8687: 23.3.50; Emacs doesn't properly initialize a TTY when resuming it,
Courtney Bane <=