From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#40278: 27.0.90; Flickering in Windows 10 Date: Mon, 30 Mar 2020 21:29:26 +0300 Message-ID: <83k1313ddl.fsf@gnu.org> References: <5e80c8ad.1c69fb81.73345.30e9@mx.google.com> <83y2rj3wfp.fsf@gnu.org> <834ku63pj1.fsf@gnu.org> <85imilolpt.fsf@gmail.com> <83o8sd3ifz.fsf@gnu.org> <85ftdpojb8.fsf@gmail.com> Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="41031"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 40278@debbugs.gnu.org, nicolasbertolo@gmail.com To: Noam Postavsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 30 20:30:12 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 1jIzAp-000Aaj-Ev for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Mar 2020 20:30:11 +0200 Original-Received: from localhost ([::1]:54717 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIzAo-00040R-Fj for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Mar 2020 14:30:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45225) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIzAh-00040H-5p for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 14:30:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jIzAg-0000mX-4c for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 14:30:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51740) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jIzAg-0000mS-0h for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 14:30:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jIzAf-0008Ej-U5 for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 14:30:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 30 Mar 2020 18:30:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 40278 X-GNU-PR-Package: emacs Original-Received: via spool by 40278-submit@debbugs.gnu.org id=B40278.158559297531601 (code B ref 40278); Mon, 30 Mar 2020 18:30:01 +0000 Original-Received: (at 40278) by debbugs.gnu.org; 30 Mar 2020 18:29:35 +0000 Original-Received: from localhost ([127.0.0.1]:35053 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jIzAF-0008Dc-1Z for submit@debbugs.gnu.org; Mon, 30 Mar 2020 14:29:35 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:58268) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jIzAD-0008DO-0N for 40278@debbugs.gnu.org; Mon, 30 Mar 2020 14:29:33 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:50628) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jIzA7-0000TL-S6; Mon, 30 Mar 2020 14:29:27 -0400 Original-Received: from [176.228.60.248] (port=4563 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jIz9x-0003hU-KJ; Mon, 30 Mar 2020 14:29:25 -0400 In-Reply-To: <85ftdpojb8.fsf@gmail.com> (message from Noam Postavsky on Mon, 30 Mar 2020 13:15:39 -0400) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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:177879 Archived-At: > From: Noam Postavsky > Cc: 40278@debbugs.gnu.org, nicolasbertolo@gmail.com > Date: Mon, 30 Mar 2020 13:15:39 -0400 > > The "flicker" part is that it looks like the window turns momentarily > completely blank before redrawing. That could happen if there's nothing in common between the previous and the new contents of the window. Again, if redisplay cannot keep up, this is entirely normal, and any flicker related to such situation is something we cannot do anything about. > > What do you mean by "beneath" in this context? > > There's occasionally a rectangle which seems to repainted slower than > its surroundings. That rectangle is lower down (closer to my desk than > the ceiling) on my monitor than the child frame. Also, I guess the text > it momentarily contains was previously behind the child frame in terms > of z-order (although it's a bit hard to tell because the repainting is > still too fast to really anything). What are the dimensions of that rectangle? Is its width identical to that of the parent frame, or is it smaller? If smaller, is the width similar to that of the child frame or different?