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#41187: 28.0.50; Flipped text Date: Mon, 11 May 2020 18:23:24 +0300 Message-ID: <83k11ibimr.fsf@gnu.org> References: <9825B211-9633-47CC-9631-A516387ADDB5@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="22367"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 41187@debbugs.gnu.org To: Wasim Abbas Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon May 11 17:24:11 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 1jYAHq-0005hK-EU for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 11 May 2020 17:24:10 +0200 Original-Received: from localhost ([::1]:57702 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jYAHp-0001Aw-3l for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 11 May 2020 11:24:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41478) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jYAHi-0001Ag-Ic for bug-gnu-emacs@gnu.org; Mon, 11 May 2020 11:24:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:41440) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jYAHi-0002RG-9N for bug-gnu-emacs@gnu.org; Mon, 11 May 2020 11:24:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jYAHi-0006f0-5D for bug-gnu-emacs@gnu.org; Mon, 11 May 2020 11:24:02 -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, 11 May 2020 15:24:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41187 X-GNU-PR-Package: emacs Original-Received: via spool by 41187-submit@debbugs.gnu.org id=B41187.158921061725559 (code B ref 41187); Mon, 11 May 2020 15:24:02 +0000 Original-Received: (at 41187) by debbugs.gnu.org; 11 May 2020 15:23:37 +0000 Original-Received: from localhost ([127.0.0.1]:52986 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jYAHJ-0006eB-Aw for submit@debbugs.gnu.org; Mon, 11 May 2020 11:23:37 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:38426) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jYAHH-0006dk-60 for 41187@debbugs.gnu.org; Mon, 11 May 2020 11:23:36 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:38761) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jYAHB-00028q-T7; Mon, 11 May 2020 11:23:29 -0400 Original-Received: from [176.228.60.248] (port=1638 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jYAHA-0006yA-Bf; Mon, 11 May 2020 11:23:28 -0400 In-Reply-To: <9825B211-9633-47CC-9631-A516387ADDB5@gmail.com> (message from Wasim Abbas on Mon, 11 May 2020 13:00:57 +0100) 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:180067 Archived-At: > From: Wasim Abbas > Date: Mon, 11 May 2020 13:00:57 +0100 > > I am seeing this issue on emacs head. The text randomly flips vertically. Very hard to reproduce. But if you open a very long C/C++ file like https://github.com/KhronosGroup/Vulkan-Headers/blob/master/include/vulkan/vulkan_core.h and keep moving around the buffer, cut 100ish lines and paste in another location and then move around again. You might hit the issue. > > Here is a screenshot of it. I haven’t tried with emacs -Q yet but happy to try if required. Wow! That's got to be some weird problem with you video driver or the display hardware. Emacs never does anything like that.