From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Flicker on MS Windows Date: Sun, 06 Mar 2022 19:46:19 +0200 Message-ID: <83y21nezys.fsf@gnu.org> References: <87o82jpeee.fsf.ref@yahoo.com> <87o82jpeee.fsf@yahoo.com> <83ee3fgwq3.fsf@gnu.org> <87fsnvpbh7.fsf@yahoo.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37518"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Po Lu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Mar 06 18:49:58 2022 Return-path: Envelope-to: ged-emacs-devel@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 1nQv14-0009UE-Gs for ged-emacs-devel@m.gmane-mx.org; Sun, 06 Mar 2022 18:49:58 +0100 Original-Received: from localhost ([::1]:53902 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nQv13-0008EF-Bm for ged-emacs-devel@m.gmane-mx.org; Sun, 06 Mar 2022 12:49:57 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:58448) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQuxt-0002tc-87 for emacs-devel@gnu.org; Sun, 06 Mar 2022 12:46:43 -0500 Original-Received: from [2001:470:142:3::e] (port=53000 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQuxr-0002cb-P0; Sun, 06 Mar 2022 12:46:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=mc9Nyah3swdb7yJOGkFZg9kJNpZqLdRus4E1SKEbqvU=; b=XGxZHZATt/+8 PUYU2Dq3HU9OoE80sJQfC98exkMYtMb+Xp9rP5gymfdWlclWR7+3q2TjZtbBTYfetT1BS9d66uFxI s34Z9UgTCU74zL7evliZE2kLf7JXcElpT4DSEsZHb4OchTz2HiuDHzsmQooIGauXS+GvKRVYc0bFT rDqcgGi6vcKWMV8g1zTC9gNAxwnWUBBJbYODmNTHVzTR7DOW+3lYZ0bLUbnXA9ocu1zkXL7BxKq41 w3831bQl4DHEAK+w2D3egL1y9vGV45k9cGDB0uGTlu0xHmqw4nRTyHaz+NP43G32XQucb2Y9tY7UW G2M8K9a9A7u/Bvo82Zl6UA==; Original-Received: from [87.69.77.57] (port=1756 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQuxj-0004Cu-Pd; Sun, 06 Mar 2022 12:46:33 -0500 In-Reply-To: <87fsnvpbh7.fsf@yahoo.com> (message from Po Lu on Sun, 06 Mar 2022 19:27:32 +0800) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:286862 Archived-At: > From: Po Lu > Cc: emacs-devel@gnu.org > Date: Sun, 06 Mar 2022 19:27:32 +0800 > > Eli Zaretskii writes: > > >> From: Po Lu > >> Date: Sun, 06 Mar 2022 18:24:25 +0800 > >> > >> Has anyone noticed that Emacs seems to flicker a lot on newer versions > >> of MS-Windows, such as Windows Vista and Windows 10? I never used Emacs > >> much on Windows, but the flicker isn't noticable on Windows XP and 9X, > >> while scrolling from the top to the bottom of w32term.c in those newer > >> versions leaves chunks of text noticably missing, presumably between > >> w32_scroll_run and the rest of the window being displayed. The menu bar > >> also constantly flickers, but I see that on Windows XP as well. > > > With which version(s) of Emacs do you see this? > > 27.2, and also 28.0.91. Also, how did "scroll from top to bottom" -- with what command(s)? And how did you determine that this is related to w32_scroll_run, or even that w32_scroll_run was called while you scrolled in this case?