GNU bug report logs - #40589
^L printed when resizing Emacs split window using ksh93

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From: Mike Kupfer <mkupfer <at> alum.berkeley.edu>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Nicholas Papadonis <nick.papadonis.ml <at> gmail.com>, Bruno Félix Rezende Ribeiro <oitofelix <at> gnu.org>, Korn Shell <korn-shell <at> googlegroups.com>, 40589 <at> debbugs.gnu.org
Subject: bug#40589: ^L printed when resizing Emacs split window using ksh93
Date: Mon, 14 Jun 2021 08:47:54 -0700

[Message part 1 (text/plain, inline)]

Lars Ingebrigtsen wrote:

> Mike Kupfer <mkupfer <at> alum.berkeley.edu> writes:
> 
> > Try
> >
> >   emacs -Q
> >   M-x shell
> >   $ ksh
> >   C-x 2
> >
> > On my Debian desktop (running Buster), that's enough to provoke
> > misbehavior, without even resizing.
> 
> I'm also using Debian/bullseye, and it doesn't misbehave for me:

Hmm.  I replaced emacs-lucid with emacs-gtk on my bullseye system, and
I'm still seeing it.  

[Screenshot at 2021-06-14 08-41-06.png (image/png, inline)]

[Message part 3 (text/plain, inline)]

Maybe there's some difference in our environment variables?

  debtest$ printenv
  _=*4625*/usr/bin/printenv
  CLUTTER_BACKEND=x11
  COLUMNS=80
  CPU=x86_64
  DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
  DESKTOP_SESSION=mate
  DISPLAY=:0
  DMAKE_OUTPUT_MODE=TXT2
  EDITOR=emacsclient
  GDMSESSION=mate
  GIT_PAGER=
  GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
  GS_OPTIONS=-sPAPERSIZE=letter
  GTK_MODULES=xapp-gtk3-module:gail:atk-bridge:canberra-gtk-module
  GTK_OVERLAY_SCROLLING=0
  HGRCPATH=/home/kupfer/.hgrc:/home/kupfer/.hg.d
  HOME=/home/kupfer
  HOST=debtest
  IGNOREEOF=4
  INSIDE_EMACS=27.1,comint
  LANG=en_US.UTF-8
  LC_TIME=C
  LOGNAME=kupfer
  MAILCHECK=60
  MANPATH=/home/kupfer/man:/usr/local/man:/usr/local/nmh/share/man:/usr/share/man:/usr/X11R6/man
  MATE_DESKTOP_SESSION_ID=this-is-deprecated
  MDK_PROFILE_DONE=Mon Jun 14 07:26:07 PDT 2021
  OS=Linux
  PATH=/sbin:/usr/sbin:/home/kupfer/bin:/home/kupfer/bin/x86_64:/usr/local/bin:/usr/bin/mh:/usr/bin:/bin:/usr/X11R6/bin
  PS1=debtest$ 
  PWD=/home/kupfer
  QT_ACCESSIBILITY=1
  QT_AUTO_SCREEN_SCALE_FACTOR=0
  QT_SCALE_FACTOR=1
  SESSION_MANAGER=local/debtest:@/tmp/.ICE-unix/999,unix/debtest:/tmp/.ICE-unix/999
  SHELL=/bin/bash
  SHLVL=2
  SSH_AGENT_PID=1136
  SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
  TERM=dumb
  TERMCAP=
  USER=kupfer
  XAUTHORITY=/home/kupfer/.Xauthority
  XDG_CURRENT_DESKTOP=MATE
  XDG_DATA_DIRS=/usr/share/mate:/usr/local/share/:/usr/share/
  XDG_GREETER_DATA_DIR=/var/lib/lightdm/data/kupfer
  XDG_RUNTIME_DIR=/run/user/1000
  XDG_SEAT=seat0
  XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
  XDG_SESSION_CLASS=user
  XDG_SESSION_DESKTOP=mate
  XDG_SESSION_ID=3
  XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
  XDG_SESSION_TYPE=x11
  XDG_VTNR=7
  A__z="*MAILCHECK="*SHLVL
  debtest$ 

I tried unsetting IGNOREEOF; that didn't make a difference.  And
changing SHELL to /usr/bin/ksh didn't make a difference.  Maybe there's
something about EDITOR, TERM, or TERMCAP?

mike

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