From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#40278: 27.0.90; Flickering in Windows 10 Date: Mon, 30 Mar 2020 13:15:39 -0400 Message-ID: <85ftdpojb8.fsf@gmail.com> References: <5e80c8ad.1c69fb81.73345.30e9@mx.google.com> <83y2rj3wfp.fsf@gnu.org> <834ku63pj1.fsf@gnu.org> <85imilolpt.fsf@gmail.com> <83o8sd3ifz.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="101997"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (windows-nt) Cc: 40278@debbugs.gnu.org, nicolasbertolo@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 30 19:16:20 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 1jIy1M-000QRD-5l for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Mar 2020 19:16:20 +0200 Original-Received: from localhost ([::1]:53518 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIy1L-00077T-5w for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Mar 2020 13:16:19 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59059) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIy16-00074h-EV for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 13:16:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jIy14-0003HD-Oq for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 13:16:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51646) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jIy14-0003Gh-8l for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 13:16:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jIy14-0003yU-3B for bug-gnu-emacs@gnu.org; Mon, 30 Mar 2020 13:16:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Noam Postavsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 30 Mar 2020 17:16:02 +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=B40278.158558854915258 (code B ref 40278); Mon, 30 Mar 2020 17:16:02 +0000 Original-Received: (at 40278) by debbugs.gnu.org; 30 Mar 2020 17:15:49 +0000 Original-Received: from localhost ([127.0.0.1]:34959 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jIy0r-0003y1-Hr for submit@debbugs.gnu.org; Mon, 30 Mar 2020 13:15:49 -0400 Original-Received: from mail-qk1-f179.google.com ([209.85.222.179]:44272) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jIy0o-0003xn-US for 40278@debbugs.gnu.org; Mon, 30 Mar 2020 13:15:47 -0400 Original-Received: by mail-qk1-f179.google.com with SMTP id j4so19793290qkc.11 for <40278@debbugs.gnu.org>; Mon, 30 Mar 2020 10:15:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=iYcmceMlOenRbI+S37ogjFBiiGXktOoR7MR8c1tM+SA=; b=Yc0AOrPRf6si1n/N5lfGX3YhYlo9CEnF/G94JIt1sKZEc0QxoTwcefGDebypeCFBN/ n+0BTObsIKj9q1mmqsdXkzfQYatv63roLRs7PPgK7oKf6itWBR6huH8pKk9zx1Lt1ZwR 1XXiav01P5e3Urf4o/iXlAPBipsOtm6rtwXTOYdYORfyNei8MbveebXJXEDnwBYvvWOI NXcY9JbcOWcXkPercgWmHReGPPVUqsGFdtg8Q05xwoXPB9WYTMSLqRYkD3AdZK9tplfh wFf55TjYI9OJelEAoD8Cbgy2ca0FYi2Cd4fexrYOJyRl+0GeO2dcKKxyQWWtxR7r0gcF 9Fyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=iYcmceMlOenRbI+S37ogjFBiiGXktOoR7MR8c1tM+SA=; b=PEt3VoTCLaWd7MJhx+Egk/XMiudLAxRjhWwfii2cDwI01Bu+FqV1DbEkCLAvgGguoP FkWNVzXh/yjt2yPCyEEfiH7JOvrAUOLTl9zHWVsEyIGzd7Qw/Z2nFJ37fGLJEKg/YmLj 0N+59JHP4UqSIO4Os4wxXQa9fCXL2cXVN8lFPSSI0kwxKXFhwGhjgW6jnJVVxGPo8s8m Bu1bGx+tVaHpT1ZhA4ydLyuHj/Sw0WBs4SBEiQzG42BbLUvA91Ogx2NPZPUW8WFMJxWj 1TMY4tqCYjKfmmzBLTFMH2m/1m23I825p2Oj3VIjqxGmTST2mVjY7YfVIlzTnyPeCVkL pwvw== X-Gm-Message-State: ANhLgQ3RHjwHE5F9zzpBP7RntckM8dGg0Rp32PdJeW+1xupQ1r3Levkc ZfMeKvROYowMbMQQyePc0C8= X-Google-Smtp-Source: ADFU+vtonmb32OSVgr3y4E4WSNm9micHNo9XCsyraKXFr+j2jao9YyIdFse2j5mbiB1E14vRBW6Ghg== X-Received: by 2002:a37:6808:: with SMTP id d8mr307647qkc.4.1585588541358; Mon, 30 Mar 2020 10:15:41 -0700 (PDT) Original-Received: from vhost2 (CPE001143542e1f-CMf81d0f809fa0.cpe.net.cable.rogers.com. [99.230.38.42]) by smtp.gmail.com with ESMTPSA id n74sm10985511qke.125.2020.03.30.10.15.40 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 30 Mar 2020 10:15:40 -0700 (PDT) In-Reply-To: <83o8sd3ifz.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 30 Mar 2020 19:40:00 +0300") 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:177878 Archived-At: Eli Zaretskii writes: >> From: Noam Postavsky >> Cc: Nicolas B=E9rtolo , >> 40278@debbugs.gnu.org >> Date: Mon, 30 Mar 2020 12:23:42 -0400 >>=20 >> I can see it here, especially on scroll towards the beginning of the >> file (Emacs is maxing out the CPU while doing this). > > If redisplay cannot keep up, you could indeed see partially-redrawn > window. But I didn't understand this was the problem, and it doesn't > sound like "flicker" to me. The "flicker" part is that it looks like the window turns momentarily completely blank before redrawing. >> It kind of looks like the rectangle beneath the child frame gets >> repainted separately from the rest. > > 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).