emacs 21.2 odd behavior in shell window

emacs 21.2 odd behavior in shell window

[Tom Wurgler]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.2.1 (hppa2.0n-hp-hpux11.00, Motif Version 2.1.0)
 of 2002-03-18 on rds294
configured using `configure  --cache-file=/dev/null --host=hppa2.0n-hp-hpux11.00 --prefix=/home/rdstt1/t901353/local --with-x-toolkit=motif --with-png'
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: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

I have two problems with 21.2.

In a shell window the cursor sometimes just goes away.  As soon as I type it
comes back, but it is odd behavior.

Also in a shell, I used to be able to hit ^C^C to interrupt a subjob.
That no longer works.  But the keystroke is still bound to
`comint-interrupt-subjob' and the odd thing is if I do 
esc-: (comint-interrupt-subjob) THAT works.

Thanks,
-tom
- -- 
============================================================================
Tom Wurgler                             The Goodyear Tire & Rubber Company
Principal Engineer                      Tire-Vehicle Engineering Technology
Phone:         330-796-1656             Technical Center D/460G            
Fax:           330-796-3292             P.O.Box 3531                       
internet mail: twurgler@goodyear.com    Akron, Ohio 44309-3531             
============================================================================


Recent input:
<down> <escape> w C-x N C-g C-g C-h N C-x C-j <up> 
<up> <up> <up> <up> f C-s b u g C-a <C-up> C-s C-s 
C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-a <escape> 
x e m a c s - b u SPC <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
C-g <escape> x a p r o p o s <return> b u g <return> 
C-x o C-x 1 <next> <next> <next> <escape> x r e p o 
p r <backspace> <backspace> r t SPC e m a c s SPC b 
u SPC <return>

Recent messages:
 [2 times]
Reading directory /home/rdstt1/t901353/local/share/emacs/21.2/etc/...done

Fontifying etc... (regexps.......)
 [2 times]
Mark saved where search started [2 times]
call-interactively: Quit
Loading apropos...done
Loading view...done
Loading emacsbug...done

Re: emacs 21.2 odd behavior in shell window

[Eli Zaretskii]

> From: Tom Wurgler <twurgler@goodyear.com>
> Date: Wed, 27 Mar 2002 09:28:43 -0500 (EST)
> 
> In a shell window the cursor sometimes just goes away.  As soon as I type it
> comes back, but it is odd behavior.

Could you please see if this is related to blinking cursor mode, by
disabling the blinking and running that way for a while?

Re: emacs 21.2 odd behavior in shell window

[Tom Wurgler]

Recently Eli Zaretskii <eliz@gnu.org> wrote:

> CC: bug-gnu-emacs@gnu.org, t901353@rds294.goodyear.com
> Reply-to: Eli Zaretskii <eliz@is.elta.co.il>
> From: Eli Zaretskii <eliz@gnu.org>
> Date: Wed, 27 Mar 2002 10:32:24 -0500
> 
> > From: Tom Wurgler <twurgler@goodyear.com>
> > Date: Wed, 27 Mar 2002 09:28:43 -0500 (EST)
> > 
> > In a shell window the cursor sometimes just goes away.  As soon as I type it
> > comes back, but it is odd behavior.

> 
> Could you please see if this is related to blinking cursor mode, by
> disabling the blinking and running that way for a while?
> 

I checked `blink-cursor's value.  It is currently set to t.

But I just discovered something else.

If I open a shell window, the cursor is down at the end of the prompt, and I hit
the cntrl key (nothing else), the cursor toggles on and off almost 100% of the
time. Sometimes it stays on if on or off it it was off, but I'd guess 98% of the
time it toggles on and off.....huuummmm????

BTW, it STAYS off until I type something.

Aha!  I just tried the same in this *mail* buffer.  Same thing happens.

Aha Aha!  I just tried the same in this *mail* buffer with the shift key.  
*Same thing happens*.

But now I realize my cursor is not blinking at all.  Just stays solid.

So I just set the blink-cursor to nil.

Same thing here too.

Does any of this help?  I did not notice this in v 21.1....

Wait a second, I'll try it right now in 21.1...

21.1 cursor blinks.  I can not get it to go away.

Thanks for looking into this.

tom

-- 
============================================================================
Tom Wurgler                             The Goodyear Tire & Rubber Company
Principal Engineer                      Tire-Vehicle Engineering Technology
Phone:         330-796-1656             Technical Center D/460G            
Fax:           330-796-3292             P.O.Box 3531                       
internet mail: twurgler@goodyear.com    Akron, Ohio 44309-3531             
============================================================================

Re: emacs 21.2 odd behavior in shell window

[Tom Wurgler]

Now I tried: `blink-cursor-mode' command.

Initially, behavior is as described before.

After running `blink-cursor-mode', cursor stays solid and I can't get it to
fail.

I rerun `blink-cursor-mode' and the old (bad) behavior comes back.

thanks

tom

Re: emacs 21.2 odd behavior in shell window

[Tom Wurgler]

There's more.  I had already tried "emacs -q" to not load my local .emacs file.
But I had linked in libraries for jpeg/png/tif/gif etc, so my execuatable wasn't
a bare bones case.

So I tried NOT including those libs.  The cursor issue was still there, BUT I
saw that configure still found XPM, UNGIF and PNG

So I then configure as follows:

./configure --without-xpm --without-ungif --without-png

It still says it used ungif(?).  Here is a portion of the output from configure:

Configured for `hppa2.0w-hp-hpux11.00'.

  Where should the build process find the source code?    /home/rdstt1/t901353/src/emacs-21.2
  What operating system and machine description files should Emacs use?
        `s/hpux11.h' and `m/hp800.h'
  What compiler should emacs be built with?               gcc -g -O2
  Should Emacs use the GNU version of malloc?             yes
  Should Emacs use a relocating allocator for buffers?    yes
  Should Emacs use mmap(2) for buffer allocation?         no
  What window system should Emacs use?                    x11
  What toolkit should Emacs use?                          none
  Where do we find X Windows header files?                Standard dirs
  Where do we find X Windows libraries?                   Standard dirs
  Does Emacs use -lXaw3d?                                 no
  Does Emacs use -lXpm?                                   no
  Does Emacs use -ljpeg?                                  no
  Does Emacs use -ltiff?                                  no
  Does Emacs use -lungif?                                 yes
  Does Emacs use -lpng?                                   no
  Does Emacs use X toolkit scroll bars?                   no

And now the cursor blinks properly and I can't get it to fail.

I will try adding one thing at a time.





------- Start of forwarded message -------
Date: Wed, 27 Mar 2002 14:39:02 -0500 (EST)
From: Tom Wurgler <t901353@rds294.goodyear.com>
To: eliz@is.elta.co.il
CC: t901353@rds294.goodyear.com
Subject: [twurgler@goodyear.com: Re: emacs 21.2 odd behavior in shell window]


Eli,

I now discover that the cursor goes off by just moving the mouse too.

thanks


- ------- Start of forwarded message -------
Date: Wed, 27 Mar 2002 11:12:07 -0500 (EST)
From: Tom Wurgler <twurgler@goodyear.com>
To: eliz@is.elta.co.il
CC: twurgler@goodyear.com, bug-gnu-emacs@gnu.org
In-reply-to: <E16qFPU-0000dm-00@fencepost.gnu.org> (message from Eli Zaretskii
	on Wed, 27 Mar 2002 10:32:24 -0500)
Subject: Re: emacs 21.2 odd behavior in shell window


Now I tried: `blink-cursor-mode' command.

Initially, behavior is as described before.

After running `blink-cursor-mode', cursor stays solid and I can't get it to
fail.

I rerun `blink-cursor-mode' and the old (bad) behavior comes back.

thanks

tom
- ------- End of forwarded message -------
------- End of forwarded message -------

Re: emacs 21.2 odd behavior in shell window

[Richard Stallman]

    Also in a shell, I used to be able to hit ^C^C to interrupt a subjob.
    That no longer works.

What does it do?  What command does it actually run?
What command is C-c C-c bound to in the shell buffer?

Re: emacs 21.2 odd behavior in shell window

[Tom Wurgler]

Recently Richard Stallman <rms@gnu.org> wrote:

> Date: Thu, 28 Mar 2002 13:48:15 -0700 (MST)
> From: Richard Stallman <rms@gnu.org>
> CC: bug-gnu-emacs@gnu.org, t901353@rds294.goodyear.com
> Reply-to: rms@gnu.org
> 
>     Also in a shell, I used to be able to hit ^C^C to interrupt a subjob.
>     That no longer works.
> 
> What does it do?  What command does it actually run?
> What command is C-c C-c bound to in the shell buffer?
> 

I am unable to duplicate the problem (right now at least).  What I had (ever
since installing 21.2) was that if I started a program in a shell and it was
prompting for a filename or whatever, if I hit ^C^C it did *NOT* abort the
program.  But if I did esc-x comint-interupt-subjob, that *DID* abort it.  But
in checking the keystroke, it really was bound to `comint-interupt-subjob' as it
should have been.  I know it sounds dumb, but it did it repeatedly, hence my
note to the list.

The ^C^C did nothing at all.  No interupt, no beep, nada.

Not much help, I know.

I'll let you know if it re-occurs.

Thanks
tom