GNU bug report logs - #4064
23.1; Hang up from tty mode when X server goes away

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 4064 in the body.
You can then email your comments to 4064 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: "Dickon Reed (dreed)" <dickon <at> cantab.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.1; Hang up from tty mode when X server goes away
Date: Thu, 6 Aug 2009 12:18:19 +0100

I am running my own build of emacs 23.1.1 on CentOS 4.4. I start emacs
under screen and run server-start from my init file. I then login via
ssh (PuTTy) from an Windows XP box, connect to the screen session, and
use make-frame-on-display to open a frame on a Cygwin/X version 1.5.3
(20090222) X server running on my desktop Windows XP box. So far,
everything works fine. After a few hours work, I hibernate my Windows
box, and then log in via ssh from a different site. I find the emacs
running screen unresponsive, whereas I'd have liked the emacs
session under screen to be working.

Later, I woke up the Windows box, logged back into the screen session
and found it had recently reported that it had lost the connection to
the X server (see log below). At that point, I can only a frame again
and everything is back to normal.




In GNU Emacs 23.1.1 (i686-pc-linux-gnu, X toolkit)
 of 2009-07-30 on runbench-dev.uk.level5networks.com
configured using `configure  '--with-gif=no''

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_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  diff-auto-refine-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-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
e SPC t h e SPC r e s u l t s SPC s t o r e SPC w a 
s SPC b r o k e n " <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> c <backspace> c 
a l l b a c k s SPC a n d <backspace> <backspace> <backspace> 
o r SPC f i l e s SPC a r e SPC n o t SPC w o r k i 
n g " <return> h g SPC q p o p <return> h g SPC q <backspace> 
p u l l SPC - u <return> h g SPC q p u s h SPC - a 
<return> h g SPC q a p <return> q <backspace> h g SPC 
q f i n SPC - a <return> h g SPC q a d d <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> h g SPC q p a <backspace> 
<backspace> a p SPC - s <return> h g SPC q p o p SPC 
- a <return> h g SPC q p u s h SPC - a <return> h g 
SPC <backspace> <backspace> <backspace> <backspace> 
<backspace> h g SPC t i p <return> h g SPC p u s h 
<return> <switch-frame> C-x n <switch-frame> ESC [ 
1 5 ~ ESC O A ESC O B ESC O B C-x C-f ~ / . e m a c 
s RET C-x o C-x 0 C-s f 7 C-s ESC O A ESC O B ESC O 
B ESC O B ESC O B ESC O B ESC O B ESC O B ESC O B ESC 
O A C-s d r C-x o ESC x r e p o r t - e m TAB RET

Recent messages:
Wrote /local/dr/runbench/nagbench.py
Mark saved where search started [3 times]
Saving file /local/dr/runbench/nagbench.py...
Wrote /local/dr/runbench/nagbench.py
(No files need saving)
Compilation finished
Quit
call-interactively: Text is read-only [4 times]
Connection lost to X server `dr-desktop:0.0'
Mark saved where search started [2 times]

Message #8 received at 4064 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Dan Nicolaescu <dann <at> ics.uci.edu>
To: "Dickon Reed \(dreed\)" <dickon <at> cantab.net>
Cc: 4064 <at> debbugs.gnu.org
Subject: Re: bug#4064: 23.1; Hang up from tty mode when X server goes away
Date: Thu, 6 Aug 2009 23:29:56 -0700 (PDT)

"Dickon Reed (dreed)" <dickon <at> cantab.net> writes:

  > I am running my own build of emacs 23.1.1 on CentOS 4.4. I start emacs
  > under screen and run server-start from my init file. I then login via
  > ssh (PuTTy) from an Windows XP box, connect to the screen session, and
  > use make-frame-on-display to open a frame on a Cygwin/X version 1.5.3
  > (20090222) X server running on my desktop Windows XP box. So far,
  > everything works fine. After a few hours work, I hibernate my Windows
  > box, and then log in via ssh from a different site. I find the emacs
  > running screen unresponsive, whereas I'd have liked the emacs
  > session under screen to be working.
  > 
  > Later, I woke up the Windows box, logged back into the screen session
  > and found it had recently reported that it had lost the connection to
  > the X server (see log below). At that point, I can only a frame again
  > and everything is back to normal.

I don't have a way to reproduce your setup, but there's an easy
workaround to this problem: instead of starting emacs in a screen
session, use:
emacs --daemon
it will start it in background.

Then you can use
emacsclient -t
to connect to it on a terminal
or
emacsclient -c
to create X11 frames.



  > 
  > 
  > In GNU Emacs 23.1.1 (i686-pc-linux-gnu, X toolkit)
  >  of 2009-07-30 on runbench-dev.uk.level5networks.com
  > configured using `configure  '--with-gif=no''
  > 
  > 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_GB.UTF-8
  >   value of $XMODIFIERS: nil
  >   locale-coding-system: utf-8-unix
  >   default-enable-multibyte-characters: t
  > 
  > Major mode: Emacs-Lisp
  > 
  > Minor modes in effect:
  >   diff-auto-refine-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-encryption-mode: t
  >   auto-compression-mode: t
  >   column-number-mode: t
  >   line-number-mode: t
  >   transient-mark-mode: t
  > 
  > Recent input:
  > e SPC t h e SPC r e s u l t s SPC s t o r e SPC w a 
  > s SPC b r o k e n " <backspace> <backspace> <backspace> 
  > <backspace> <backspace> <backspace> <backspace> <backspace> 
  > <backspace> <backspace> <backspace> c <backspace> c 
  > a l l b a c k s SPC a n d <backspace> <backspace> <backspace> 
  > o r SPC f i l e s SPC a r e SPC n o t SPC w o r k i 
  > n g " <return> h g SPC q p o p <return> h g SPC q <backspace> 
  > p u l l SPC - u <return> h g SPC q p u s h SPC - a 
  > <return> h g SPC q a p <return> q <backspace> h g SPC 
  > q f i n SPC - a <return> h g SPC q a d d <backspace> 
  > <backspace> <backspace> <backspace> <backspace> <backspace> 
  > <backspace> <backspace> <backspace> h g SPC q p a <backspace> 
  > <backspace> a p SPC - s <return> h g SPC q p o p SPC 
  > - a <return> h g SPC q p u s h SPC - a <return> h g 
  > SPC <backspace> <backspace> <backspace> <backspace> 
  > <backspace> h g SPC t i p <return> h g SPC p u s h 
  > <return> <switch-frame> C-x n <switch-frame> ESC [ 
  > 1 5 ~ ESC O A ESC O B ESC O B C-x C-f ~ / . e m a c 
  > s RET C-x o C-x 0 C-s f 7 C-s ESC O A ESC O B ESC O 
  > B ESC O B ESC O B ESC O B ESC O B ESC O B ESC O B ESC 
  > O A C-s d r C-x o ESC x r e p o r t - e m TAB RET
  > 
  > Recent messages:
  > Wrote /local/dr/runbench/nagbench.py
  > Mark saved where search started [3 times]
  > Saving file /local/dr/runbench/nagbench.py...
  > Wrote /local/dr/runbench/nagbench.py
  > (No files need saving)
  > Compilation finished
  > Quit
  > call-interactively: Text is read-only [4 times]
  > Connection lost to X server `dr-desktop:0.0'
  > Mark saved where search started [2 times]

Message #17 received at 4064 <at> debbugs.gnu.org (full text, mbox):

From: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
To: "Dickon Reed \(dreed\)" <dickon <at> cantab.net>
Cc: 4064 <at> debbugs.gnu.org
Subject: Re: 23.1; Hang up from tty mode when X server goes away
Date: Tue, 12 Jul 2011 22:24:05 +0200

"Dickon Reed (dreed)" <dickon <at> cantab.net> writes:

> I am running my own build of emacs 23.1.1 on CentOS 4.4. I start emacs
> under screen and run server-start from my init file. I then login via
> ssh (PuTTy) from an Windows XP box, connect to the screen session, and
> use make-frame-on-display to open a frame on a Cygwin/X version 1.5.3
> (20090222) X server running on my desktop Windows XP box. So far,
> everything works fine. After a few hours work, I hibernate my Windows
> box, and then log in via ssh from a different site. I find the emacs
> running screen unresponsive, whereas I'd have liked the emacs
> session under screen to be working.

I think this has been fixed by the multi-tty (etc.) work in Emacs 24, so
I'm closing this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
  bloggy blog http://lars.ingebrigtsen.no/

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.