GNU bug report logs - #12363
24.2.50; pulse.el highlighting causes flickering

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

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2.50; pulse.el highlighting causes flickering
Date: Thu, 06 Sep 2012 04:15:18 +0400

1. Open some buffer(s) (the more text, the better) in one or several
windows.

2. (require 'pulse)

3. (pulse-momentary-highlight-one-line (point))

4. Observe, for the duration of highlighting pulse, flickering cursor
and text at random places.

I think it's a rather old problem, I remember seeing it with ECB or just
Semantic at least a year ago.

In GNU Emacs 24.2.50.1 (i386-mingw-nt6.1.7601)
 of 2012-09-01 on SOL
Bzr revision: 109843 rudalics <at> gmx.at-20120901164709-puy2rq2g4zsjwjee
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (3.4) --cflags -IJ:/Apps/system/gnuwin32/include'

Important settings:
  value of $EMACSDATA: C:/Users/gutov/vc/emacs-bzr/trunk/etc
  value of $EMACSDOC: C:/Users/gutov/vc/emacs-bzr/trunk/etc
  value of $EMACSLOADPATH: 
C:/Users/gutov/vc/emacs-bzr/trunk/site-lisp;C:/Users/gutov/vc/emacs-bzr/trunk/../site-lisp;C:/Users/gutov/vc/emacs-bzr/trunk/lisp;C:/Users/gutov/vc/emacs-bzr/trunk/leim
  value of $EMACSPATH: C:/Users/gutov/vc/emacs-bzr/trunk/bin
  value of $LANG: RUS
  locale-coding-system: cp1251
  default enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  tooltip-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

Recent input:
a s d <return> a s <return> d <return> a s d <return>
a <return> s d <return> a s <return> d <return> a s
d <return> <return> a s d d d d d d d d d d d d d d
d d d d d d d d d d d d d d <home> M-: ( r e q u i
r e SPC ' p u l s e . e l <backspace> <backspace> <backspace>
) <return> M-: C-y C-z <S-home> C-y <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <delete>
<delete> <return> M-: <up> <return> M-: <up> <return>
<down> <return> <return> a s d a s d C-x 3 M-x f i
n d - l i b <tab> SPC p u l s e <backspace> <backspace>
<backspace> <backspace> <backspace> <return> p u l
s e <return> <help-echo> <help-echo> M-: <up> <return>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> M-: <up> <return> M-: <M-up> <return> M-: <up>
<return> M-: <up> <return> M-: <up> <return> M-: <up>
<return> M-: <up> <return> C-x <right> C-x <left> C-x
o C-x 0 M-x r e p o r t <tab> <return>

Recent messages:
Warning: Lisp directory `C:/Users/gutov/vc/emacs-bzr/trunk/../site-lisp' 
does not exist.

For information about GNU Emacs and the GNU system, type C-h C-a.
pulse
delete-forward-char: End of buffer [2 times]
nil [3 times]
byte-code: End of buffer
Loading vc-bzr...done
nil [2 times]
let: End of file during parsing
nil [5 times]

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils vc-bzr thingatpt find-func pulse time-date
tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table
ls-lisp w32-win w32-vars tool-bar dnd fontset image regexp-opt fringe
tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow
timer select scroll-bar mouse jit-lock font-lock syntax facemenu
font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan
thai tai-viet lao korean japanese hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer button faces cus-face files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
multi-tty emacs)

Message #10 received at 12363-done <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: emacs-devel <at> gnu.org, Daniel Colascione <dancol <at> dancol.org>
Cc: 12363-done <at> debbugs.gnu.org, 16621-done <at> debbugs.gnu.org
Subject: Re: [Emacs-diffs] master c290715: Add double-buffering support to
 reduce flicker
Date: Wed, 25 Jan 2017 05:21:03 +0300

Version: 26.1

On 29.10.2016 05:30, Daniel Colascione wrote:
> branch: master
> commit c29071587c64efb30792bd72248d3c791abd9337
> Author: Daniel Colascione <dancol <at> dancol.org>
> Commit: Daniel Colascione <dancol <at> dancol.org>
>
>     Add double-buffering support to reduce flicker

I'd like to add my belated gratitude. This is the kind of change that 
makes me happier to use Emacs and to continue contributing.

Thanks, Daniel!

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