From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Y. E. via "Emacs development discussions." Newsgroups: gmane.emacs.devel Subject: Re: macOS metal rendering engine in mac port Date: Thu, 16 Sep 2021 18:59:33 +0300 Message-ID: References: <83v9702n8j.fsf@gnu.org> <83sg242l8s.fsf@gnu.org> <83lf7v3acn.fsf@gnu.org> <877dfhmybi.fsf@gmail.com> Reply-To: "Y. E." Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39388"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Illia Ostapyshyn , Aaron Jensen , emacs-devel@gnu.org To: Alan Third Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Sep 16 19:02:01 2021 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 1mQult-000A16-4y for ged-emacs-devel@m.gmane-mx.org; Thu, 16 Sep 2021 19:02:01 +0200 Original-Received: from localhost ([::1]:56554 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mQulr-0008Ts-1P for ged-emacs-devel@m.gmane-mx.org; Thu, 16 Sep 2021 13:01:59 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47630) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mQtng-0005kn-9Q for emacs-devel@gnu.org; Thu, 16 Sep 2021 11:59:49 -0400 Original-Received: from out1.migadu.com ([91.121.223.63]:38017) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mQtnd-00016x-Kq for emacs-devel@gnu.org; Thu, 16 Sep 2021 11:59:47 -0400 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ego.team; s=key1; t=1631807978; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=2eUnnufscizhGEvQ5k5qUnCijKhdZenPkcofVMSCB3E=; b=pbK5hIjOG+I9dddZEnqncxRXuFWjKcZ6lrDGWWbOzstKy6IIV/3ONBGHNMXjUdUedeqlAn kY1zqhr7I3swgsstffUSQ/j47+kPTujJgmNLhjcabIlplzdv0COWcUHJG1fTkItr0IHlQk PpZR3TJHtnXfakdQeGK08nn1N711KTU= In-Reply-To: (Alan Third's message of "Wed, 15 Sep 2021 20:54:49 +0100") X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: yuga@ego.team Received-SPF: pass client-ip=91.121.223.63; envelope-from=yet@ego.team; helo=out1.migadu.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Thu, 16 Sep 2021 13:00:11 -0400 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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" X-ACL-Warn: , Y. E. Xref: news.gmane.io gmane.emacs.devel:274826 Archived-At: >> > It's infrequent, but I've seen a number of rendering artifacts in 28 >> > in the last month or so. Typically it is a line of group of lines that >> > are painted twice (i.e. in the wrong place). I may see line 33 >> > duplicated so there is no 34, just two 33 in a row. Scrolling to >> > change the position does not fix it. I have to scroll the buggy line >> > out of view entirely and scroll it back to get it to be right. >> > >> > I do not have a repro for this unfortunately. >> >> I can confirm that I have been having this exact issue for quite some >> time now. It is very infrequent and mild so I never bothered to report >> it. >> >> I also don't have any ideas what's causing it and how to reproduce it, >> but M-x redraw-display RET fixes it straight away. I saw this (or extremely similar) issue 2-3 times during the past month on an oldish MacOS with vanilla Emacs, in buffers with ELisp code. I looked as if chunk of the text (from this buffer) overlayed another (correct) text. And it was impossible to remove that overlaying text without reverting (AFAIR) the buffer. Unfortunately, I also have no idea on how to reproduce the issue so far.