GNU bug report logs - #27647
26.0.50; Line numbers implemented natively disappear momentarily when frame out of focus

Previous Next

Full log

Message #32 received at 27647 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 27647 <at> debbugs.gnu.org, Kaushal Modi <kaushal.modi <at> gmail.com>
Subject: Re: bug#27647: 26.0.50; Line numbers implemented natively disappear
 momentarily when frame out of focus
Date: Wed, 19 Jul 2017 13:52:28 -0400

On Wed, Jul 12, 2017 at 10:44 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:
>> From: Kaushal Modi <kaushal.modi <at> gmail.com>
>> Date: Tue, 11 Jul 2017 20:08:47 +0000
>> Cc: 27647 <at> debbugs.gnu.org
>>
>> This is what I see (I was able to record the moment when the lines reappeared on clicking anywhere in the
>> window): http://i.imgur.com/5C5FmGS.gifv
>>
>> When the above happened, the point was in a Fundamental Mode buffer window and the other window had
>> this file in emacs-lisp-mode. I do not have display-line-numbers set to t globally; so fundamental-mode has
>> that value at nil and the elisp window had that set to t. Again the line num disappearance happened when the
>> emacs frame was out of focus.
>>
>> Interestingly the variable watcher did not get triggered.
>
> I guess the variable gets changed by one of the ways that Lisp-level
> watchers cannot catch.

Perhaps 'watch Vdisplay_line_numbers' in gdb would help?

Previous Next

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