From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: YAMAMOTO Mitsuharu Newsgroups: gmane.emacs.bugs Subject: bug#3347: 23.0.93; unnecessary display updates with mouse-drag-region Date: Wed, 16 Sep 2020 13:25:38 +0900 Organization: Faculty of Science, Chiba University Message-ID: References: <87h7s08lk8.fsf@gnus.org> Mime-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38015"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (=?UTF-8?Q?Goj=C5=8D?=) APEL/10.8 EasyPG/1.0.0 Emacs/26.3 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) Cc: 3347@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Sep 16 06:26:10 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kIP1F-0009gs-Fz for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 16 Sep 2020 06:26:09 +0200 Original-Received: from localhost ([::1]:36892 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kIP1E-0002aK-3j for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 16 Sep 2020 00:26:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41764) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIP18-0002aD-0h for bug-gnu-emacs@gnu.org; Wed, 16 Sep 2020 00:26:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49599) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kIP17-0000jv-OI for bug-gnu-emacs@gnu.org; Wed, 16 Sep 2020 00:26:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kIP17-0007eT-JT for bug-gnu-emacs@gnu.org; Wed, 16 Sep 2020 00:26:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: YAMAMOTO Mitsuharu Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 16 Sep 2020 04:26:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 3347 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 3347-submit@debbugs.gnu.org id=B3347.160023034429388 (code B ref 3347); Wed, 16 Sep 2020 04:26:01 +0000 Original-Received: (at 3347) by debbugs.gnu.org; 16 Sep 2020 04:25:44 +0000 Original-Received: from localhost ([127.0.0.1]:32912 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kIP0q-0007dw-7B for submit@debbugs.gnu.org; Wed, 16 Sep 2020 00:25:44 -0400 Original-Received: from mathmail.math.s.chiba-u.ac.jp ([133.82.132.2]:58521) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kIP0n-0007dl-KK for 3347@debbugs.gnu.org; Wed, 16 Sep 2020 00:25:42 -0400 Original-Received: from mathent.math.s.chiba-u.ac.jp (mathent [192.168.32.5]) by mathmail.math.s.chiba-u.ac.jp (Postfix) with ESMTP id 101F9F08E8; Wed, 16 Sep 2020 13:25:38 +0900 (JST) (envelope-from mituharu@math.s.chiba-u.ac.jp) In-Reply-To: <87h7s08lk8.fsf@gnus.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:188159 Archived-At: On Mon, 14 Sep 2020 23:44:39 +0900, Lars Ingebrigtsen wrote: > > YAMAMOTO Mitsuharu writes: > > > Mouse dragging over a text in the default face causes unnecessary > > updates in other windows displaying the same buffer. > > > > Steps to reproduce: > > > > 1. Invoke "Quartz Debug.app" on Mac OS X and check the "Flash screen > > updates" button. > > 2. $ emacs -Q -D > > 3. C-x 2 > > 4. Drag the mouse over the *scratch* buffer text in the first > > window. > > (This was 11 years ago.) > > The Quartz Debug app doesn't seem to exist on Macos any more, so I'm > unable to try the recipe. It is now included in "Additional Tools for Xcode", which can be downloaded from https://developer.apple.com/download/more/ (You might need to sign in with your Apple ID.) > Do you still see this problem in more recent versions of Emacs? Yes, but you need to disable double-buffering with (set-frame-paremter nil 'inhibit-double-buffering t) . Otherwise, Quartz Debug thinks the whole frame is updated. YAMAMOTO Mitsuharu mituharu@math.s.chiba-u.ac.jp