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Sometimes the emacs windows will fli= cker badly. This often happens when

scrolling, just= moving the cursor, or using clicking with the mouse on some part

of the buffer.

 

=

It can be reproduced with `emacs -Q` but it is much le= ss pronounced than with my

custom configuration. I = can post it if necessary.

 

The following steps can be useful to reproduce it:

1) Open a long C++ file.

2) Run (s= etq mouse-wheel-scroll-amount '(1)).

3) Mouse the m= ouse whell up and down fast.

4) Pay attention to th= e part of the screen that should show new content.

= Sometimes it will flicker a few time before stabilizing.

 

 

In GNU Emacs 27.0.90 (build 1, x86_64-w64-mingw32)

of 2020-03-26 built on DESKTOP-0DKLDHI

Repository revision: e1f0e0892232221e6333b24788b97942c83ec738

Repository branch: emacs-27

Windowin= g system distributor 'Microsoft Corp.', version 10.0.18363

System Description: Microsoft Windows 10 Pro (v10.0.1909.18363.720)=

 

Recent m= essages:

Sending...

Sending= via mail...

<left-fringe> <mouse-1> is= undefined

Save this mail sending choice? (y or n) = n

Sending...done

Beginning = of buffer [2 times]

C-x C-k C-x k is undefined

<= p class=3DMsoNormal>Quit

ESC ESC M-x is undefined

delete-backward-char: Text is read-only

 

Configured using:

'configure --prefix=3D/c/users/nicol/emacs/'

 

Configured featu= res:

XPM JPEG TIFF GIF PNG RSVG SOUND DBUS NOTIFY W= 32NOTIFY ACL GNUTLS

LIBXML2 HARFBUZZ ZLIB TOOLKIT_S= CROLL_BARS MODULES THREADS JSON PDUMPER

LCMS2 GMP

 

Important = settings:

=C2=A0 value of $LANG: ENG

=C2=A0 locale-coding-system: cp1252

=  

Major mode: C++//l

 

Minor modes in effect:

=C2=A0 tooltip-mode: t

=C2=A0 gl= obal-eldoc-mode: t

=C2=A0 electric-indent-mode: t

=C2=A0 mouse-wheel-mode: t

= =C2=A0 tool-bar-mode: t

=C2=A0 menu-bar-mode: t

=

=C2=A0 file-name-shadow-mode: t

=C2=A0 global-font-lock-mode: t

=C2=A0 font-lock-= mode: t

=C2=A0 blink-cursor-mode: t

=C2=A0 auto-composition-mode: t

=C2=A0 aut= o-encryption-mode: t

=C2=A0 auto-compression-mode: = t

=C2=A0 line-number-mode: t

=C2=A0 transient-mark-mode: t

=C2=A0 abbrev-mode:= t

 

Load-p= ath shadows:

None found.

 

Features:

(= kmacro mailalias mailclient browse-url vc-git diff-mode easy-mmode

cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-ali= gn cc-engine

cc-vars cc-defs help-mode pp shadow so= rt mail-extr emacsbug message rmc

puny dired dired-= loaddefs format-spec rfc822 mml easymenu mml-sec

pa= ssword-cache epa derived epg epg-config gnus-util rmail rmail-loaddefs

<= p class=3DMsoNormal>text-property-search seq byte-opt gv bytecomp byte-comp= ile cconv

mm-decode mm-bodies mm-encode mail-parse = rfc2231 mailabbrev gmm-utils

mailheader sendmail rf= c2047 rfc2045 ietf-drums mm-util mail-prsvr

mail-ut= ils time-date subr-x cl-loaddefs cl-lib tooltip eldoc electric

uniquify ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls= -lisp

disp-table term/w32-win w32-win w32-vars term= /common-win tool-bar dnd

fontset image regexp-opt f= ringe tabulated-list replace newcomment

text-mode e= lisp-mode lisp-mode prog-mode register page tab-bar menu-bar

rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-l= ock

syntax facemenu font-core term/tty-colors frame= minibuffer cl-generic

cham georgian utf-8-lang mis= c-lang vietnamese tibetan thai tai-viet lao

korean = japanese eucjp-ms cp51932 hebrew greek romanian slovak czech

european ethiopic indian cyrillic chinese composite charscript ch= arprop

case-table epa-hook jka-cmpr-hook help simpl= e abbrev obarray

cl-preloaded nadvice loaddefs butt= on faces cus-face macroexp files

text-properties ov= erlay sha1 md5 base64 format env code-pages mule

cu= stom widget hashtable-print-readable backquote threads w32notify

dbusbind w32 lcms2 multi-tty make-network-process emacs)

<= p class=3DMsoNormal> 

Memory inform= ation:

((conses 16 92013 15535)

(symbols 48 9465 0)

(strings 32 26206 2252)<= /p>

(string-bytes 1 939680)

(= vectors 16 14062)

(vector-slots 8 176785 28090)

(floats 8 33 182)

(interval= s 56 3372 30)

(buffers 1000 17))

=