From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: Flicker on MS Windows Date: Mon, 07 Mar 2022 08:37:24 +0800 Message-ID: <87pmmyoawr.fsf@yahoo.com> References: <87o82jpeee.fsf.ref@yahoo.com> <87o82jpeee.fsf@yahoo.com> <87czizkof7.fsf@telefonica.net> <8335jvggen.fsf@gnu.org> <878rtnknwp.fsf@telefonica.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30174"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux) Cc: emacs-devel@gnu.org To: =?utf-8?Q?=C3=93scar?= Fuentes Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Mar 07 01:39:43 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 1nR1Pb-0007hR-5y for ged-emacs-devel@m.gmane-mx.org; 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Mon, 7 Mar 2022 00:37:35 +0000 Original-Received: by kubenode518.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 666d5532869e780b708d9be20076e811; Mon, 07 Mar 2022 00:37:28 +0000 (UTC) In-Reply-To: <878rtnknwp.fsf@telefonica.net> (=?utf-8?Q?=22=C3=93scar?= Fuentes"'s message of "Sun, 06 Mar 2022 18:10:14 +0100") X-Mailer: WebService/1.1.19797 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.185.148; envelope-from=luangruo@yahoo.com; helo=sonic305-22.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action 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:286871 Archived-At: =C3=93scar Fuentes writes: > Eli Zaretskii writes: > >>> Emacs 27 & 28 are annoyingly flickering here as well (Windows 7 and up, >>> dunno about XP) compared to the same configuration under Lucid. >> >> Does the Lucid build have double-buffering enabled? > > Now that you mention that, I seem to recall something about double > buffering that greatly reduced Lucid's flickering on the past. > > How can I check that double buffering is enabled? Double buffering is enabled by default on all X11 builds, unless you specify a configure-time option. It's unrelated to the toolkit being used (although GTK 3 has problems that cause a big black square to appear for a moment when a frame is being resized, I'm looking into that.) Your X server must of course support the double buffering extension, but most today do.