GNU bug report logs - #32992
27.0.50; Malfunctioning Cursor display

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 32992 in the body.
You can then email your comments to 32992 AT debbugs.gnu.org in the normal way.

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

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mauro Aranda <maurooaranda <at> gmail.com>
To: bug-gnu-emacs <bug-gnu-emacs <at> gnu.org>
Subject: 27.0.50; Malfunctioning Cursor display
Date: Mon, 8 Oct 2018 15:45:59 -0300

Hello.

This happens to me with the latest master :

Start emacs: emacs -Q
Since start I cannot see the cursor blinking.
If I type something: a or C-b, for example, then the cursor stops
being displayed
immediately and I can't see where point is anymore.
If I type: C-x b I can see the cursor as a hollow box, like expected,
but when I select the window (typing C-g, for example), cursor
disappears again.

There is no problem when running `emacs -nw'.


In GNU Emacs 27.0.50 (build 1, i686-pc-linux-gnu, GTK+ Version 3.18.9)
 of 2018-10-08 built on the-blackbeard
Repository revision: a0605d96187bc4103a982cededcd12e2628aba66
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 16.04.5 LTS

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM THREADS LCMS2 GMP

Important settings:
  value of $LANG: es_AR.UTF-8
  value of $XMODIFIERS:
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rmc puny seq byte-opt gv
bytecomp byte-compile cconv dired dired-loaddefs format-spec rfc822 mml
easymenu mml-sec password-cache epa derived epg epg-config gnus-util
rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils elec-pair time-date
mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar
dnd fontset image regexp-opt fringe tabulated-list replace newcomment
text-mode elisp-mode lisp-mode prog-mode register page menu-bar
rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core term/tty-colors frame cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese composite charscript charprop
case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer
cl-preloaded nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote threads dbusbind
inotify lcms2 dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 8 94463 8670)
 (symbols 24 20134 1)
 (strings 16 28346 2587)
 (string-bytes 1 750579)
 (vectors 8 14254)
 (vector-slots 4 510532 11266)
 (floats 8 47 70)
 (intervals 28 202 4)
 (buffers 528 11)
 (heap 1024 17240 873))

Message #8 received at 32992 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Mauro Aranda <maurooaranda <at> gmail.com>
Cc: 32992 <at> debbugs.gnu.org
Subject: Re: bug#32992: 27.0.50; Malfunctioning Cursor display
Date: Mon, 08 Oct 2018 23:11:03 +0300

> From: Mauro Aranda <maurooaranda <at> gmail.com>
> Date: Mon, 8 Oct 2018 15:45:59 -0300
> 
> This happens to me with the latest master :
> 
> Start emacs: emacs -Q
> Since start I cannot see the cursor blinking.
> If I type something: a or C-b, for example, then the cursor stops
> being displayed
> immediately and I can't see where point is anymore.
> If I type: C-x b I can see the cursor as a hollow box, like expected,
> but when I select the window (typing C-g, for example), cursor
> disappears again.

Not reproducible here (but I'm not on GNU/Linux).

Could this be the result of recent changes in time-related functions?
Can you try bisecting?

Thanks.

Message #11 received at 32992 <at> debbugs.gnu.org (full text, mbox):

From: Mauro Aranda <maurooaranda <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 32992 <at> debbugs.gnu.org
Subject: Re: bug#32992: 27.0.50; Malfunctioning Cursor display
Date: Mon, 8 Oct 2018 17:45:25 -0300

2018-10-08 17:11 GMT-03:00, Eli Zaretskii <eliz <at> gnu.org>:
>> From: Mauro Aranda <maurooaranda <at> gmail.com>
>> Date: Mon, 8 Oct 2018 15:45:59 -0300
>>
>> This happens to me with the latest master :
>>
>> Start emacs: emacs -Q
>> Since start I cannot see the cursor blinking.
>> If I type something: a or C-b, for example, then the cursor stops
>> being displayed
>> immediately and I can't see where point is anymore.
>> If I type: C-x b I can see the cursor as a hollow box, like expected,
>> but when I select the window (typing C-g, for example), cursor
>> disappears again.
>
> Not reproducible here (but I'm not on GNU/Linux).
>
> Could this be the result of recent changes in time-related functions?
> Can you try bisecting?
>
> Thanks.
>

I compiled commit 84f39d3... and the cursor displays correctly.
But with commit 93fe420... the problem arises.

I hope that information is useful.

Message #14 received at 32992 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Mauro Aranda <maurooaranda <at> gmail.com>, Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 32992 <at> debbugs.gnu.org
Subject: Re: bug#32992: 27.0.50; Malfunctioning Cursor display
Date: Tue, 09 Oct 2018 18:12:15 +0300

> From: Mauro Aranda <maurooaranda <at> gmail.com>
> Date: Mon, 8 Oct 2018 17:45:25 -0300
> Cc: 32992 <at> debbugs.gnu.org
> 
> > Could this be the result of recent changes in time-related functions?
> > Can you try bisecting?
> >
> > Thanks.
> >
> 
> I compiled commit 84f39d3... and the cursor displays correctly.
> But with commit 93fe420... the problem arises.
> 
> I hope that information is useful.

Yes, that pretty much points to the changeset I had in mind.

Paul, could you please take a look?  Thanks.

Message #19 received at 32992-done <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>, Mauro Aranda <maurooaranda <at> gmail.com>
Cc: 32992-done <at> debbugs.gnu.org
Subject: Re: bug#32992: 27.0.50; Malfunctioning Cursor display
Date: Tue, 9 Oct 2018 09:51:29 -0700

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

Eli Zaretskii wrote:

> Paul, could you please take a look?  Thanks.

I took a look, reproduced the problem on 32-bit Ubuntu 18.04, and installed the 
attached patch. Thanks, Mauro, for reporting it.

[0001-Fix-malfunctioning-cursor-display-on-32-bit-Gtk.txt (text/plain, attachment)]

Message #22 received at 32992 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: maurooaranda <at> gmail.com, 32992 <at> debbugs.gnu.org
Subject: Re: bug#32992: 27.0.50; Malfunctioning Cursor display
Date: Tue, 09 Oct 2018 20:52:18 +0300

> Cc: 32992-done <at> debbugs.gnu.org
> From: Paul Eggert <eggert <at> cs.ucla.edu>
> Date: Tue, 9 Oct 2018 09:51:29 -0700
> 
> I took a look, reproduced the problem on 32-bit Ubuntu 18.04, and installed the 
> attached patch. Thanks, Mauro, for reporting it.

Thanks.

> @@ -236,13 +236,15 @@ enum Lisp_Bits
>      /* Number of bits in a Lisp_Object value, not counting the tag.  */
>      VALBITS = EMACS_INT_WIDTH - GCTYPEBITS,
>  
> -    /* Number of bits in a Lisp fixnum tag.  */
> -    INTTYPEBITS = GCTYPEBITS - 1,
> -

INTTYPEBITS is used in .gdbinit, so this change will probably cause
xint to barf unless Emacs was built with -g3, is that right?

Message #25 received at 32992 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: maurooaranda <at> gmail.com, 32992 <at> debbugs.gnu.org
Subject: Re: bug#32992: 27.0.50; Malfunctioning Cursor display
Date: Tue, 9 Oct 2018 11:03:57 -0700

Eli Zaretskii wrote:
> INTTYPEBITS is used in .gdbinit, so this change will probably cause
> xint to barf unless Emacs was built with -g3, is that right?

It should still work, since the patch uses DEFINE_GDB_SYMBOL_BEGIN.

Previous Next

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