From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Third Newsgroups: gmane.emacs.bugs Subject: bug#45038: 27.1; blank display Date: Fri, 4 Dec 2020 13:11:25 +0000 Message-ID: References: <83y2iedlad.fsf@gnu.org> <83lfedeq4k.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27533"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 45038@debbugs.gnu.org, Emacs-hacker2018@jovi.net, stefan@marxist.se To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Dec 04 14:12:10 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 1klAsc-00072q-5J for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 04 Dec 2020 14:12:10 +0100 Original-Received: from localhost ([::1]:49744 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1klAsb-00056B-37 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 04 Dec 2020 08:12:09 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36298) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1klAsU-000564-GF for bug-gnu-emacs@gnu.org; Fri, 04 Dec 2020 08:12:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60055) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1klAsU-0004FJ-8C for bug-gnu-emacs@gnu.org; Fri, 04 Dec 2020 08:12:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1klAsU-0005Ve-1G for bug-gnu-emacs@gnu.org; Fri, 04 Dec 2020 08:12:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Alan Third Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 04 Dec 2020 13:12:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45038 X-GNU-PR-Package: emacs Original-Received: via spool by 45038-submit@debbugs.gnu.org id=B45038.160708749721138 (code B ref 45038); Fri, 04 Dec 2020 13:12:01 +0000 Original-Received: (at 45038) by debbugs.gnu.org; 4 Dec 2020 13:11:37 +0000 Original-Received: from localhost ([127.0.0.1]:43368 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1klAs5-0005Us-D6 for submit@debbugs.gnu.org; Fri, 04 Dec 2020 08:11:37 -0500 Original-Received: from outbound.soverin.net ([116.202.65.218]:50181) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1klAs3-0005Ud-J7 for 45038@debbugs.gnu.org; Fri, 04 Dec 2020 08:11:36 -0500 Original-Received: from smtp.soverin.net (unknown [10.10.3.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by outbound.soverin.net (Postfix) with ESMTPS id 8269D60157; Fri, 4 Dec 2020 13:11:29 +0000 (UTC) Original-Received: from smtp.soverin.net (smtp.soverin.net [159.69.232.142]) by soverin.net Original-Received: by breton.holly.idiocy.org (Postfix, from userid 501) id F0401202859116; Fri, 4 Dec 2020 13:11:25 +0000 (GMT) Mail-Followup-To: Alan Third , Eli Zaretskii , stefan@marxist.se, 45038@debbugs.gnu.org, Emacs-hacker2018@jovi.net Content-Disposition: inline In-Reply-To: <83lfedeq4k.fsf@gnu.org> 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:194999 Archived-At: On Fri, Dec 04, 2020 at 02:02:03PM +0200, Eli Zaretskii wrote: > > Date: Fri, 4 Dec 2020 10:53:22 +0000 > > From: Alan Third > > Cc: Eli Zaretskii , 45038@debbugs.gnu.org, > > Devon Sean McCullough > > > > > > I think this is a known problem already solved in the repository. can > > > > you try building the latest emacs-27 branch? > > > > > > I could have sworn I saw this the other week on master. If you > > > believe it is fixed, then perhaps I was using an old version at the > > > time. Please ignore me for now, I'll report back if I see it again. > > > > It should be fixed on master, but not in any version of Emacs 27. It's > > a large change so was never back ported. > > If it isn't reasonable to release Emacs 27.2 with this problem, we may > wish backporting the change even though it is large. > > How easy is it to bump into this problem, and is there an easy > workaround when you do? It's unusual to have the display completely blanking, most people just see small localised glitches. Usually it can be solved by forcing a redisplay of some sort, which is what you can see in Devon's example as he moves the cursor across the lines, which forces redisplay of those lines. I would prefer not to back-port to Emacs 27, but if you think it's necessary I'll give it a go. -- Alan Third