From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Bryan Gilbert Newsgroups: gmane.emacs.bugs Subject: bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on Linux Date: Wed, 04 Oct 2017 07:21:55 -0400 Message-ID: <874lrfcg4s.fsf@bryan.sh> References: <8760bvd2w7.fsf@bryan.sh> <59D4A431.7010801@gmx.at> <831smjz2b2.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1507116162 3303 195.159.176.226 (4 Oct 2017 11:22:42 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 4 Oct 2017 11:22:42 +0000 (UTC) User-Agent: mu4e 0.9.18; emacs 26.0.60 Cc: bryan@bryan.sh, 28695@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 04 13:22:37 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dzhl6-0008D0-G2 for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 4 Oct 2017 07:21:57 -0400 (EDT) Original-Received: from frontend2 ([10.202.2.161]) by compute6.internal (MEProxy); Wed, 04 Oct 2017 07:21:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bryan.sh; h=cc :content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to:x-me-sender:x-me-sender:x-sasl-enc :x-sasl-enc; s=fm1; bh=9OEh5H4X0k+rBLc+od8+pP4kvIWdPMp/jGJx2mual Bc=; b=Ibz0QDmnYJx1F6si+bERvhy/o/PnF1Zc+XRcBdmZCeylHiSGH/QWxFhp7 tZDvuWI0V9EQwulzWnmFPX5EOwx/a0gjY4Dc0cThGa9NeN6YF8z0VJ5mV6beOX8M LLH7sjoBAhZz7qaWM4wRIArf/ly1JP0C0vyLs0aC0SChyZk92xoj7jLMF/37GFhK BfKL5Ojfc6cJLagP5OQVWwvVCINVTWgUVpKE/y30avFMPtjo1gb9NfFUIefV7vWu ldrbdlOLTd9VLaiz1xohTJLD/vy4sOJ3jicGD/02GS+hEoWtoQYzja+hQmb0yauu VBPisMfBfuSZL4/pwfG/K3ucmJZZg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc:x-sasl-enc; s=fm1; bh=9OEh5H4X0k+rBLc+od 8+pP4kvIWdPMp/jGJx2mualBc=; b=PNbMugm4iVGYlREKuEqkTX87hRZ1x++X/0 SAyu/tzXPBvwThZ0v9mIFi/Klau3taMjv76s6RnhLYfgnYa5g4Wqrww/t7stJfKb tHZI1DofnLnweJqFEwFVgQqk0N7uJWIqrPKmekq3kJyJ9YOJ9gnmwKBCs2eO201h Eoa+KCEo5MioYg4ZQn2NX0hC/lh4v3JMgvEyP6Cf5Z4dhZzOUXxRhV0y/qPVbnOy dPeEmUSdNXXV+uMEzjVacI1VmtQwL3xBwenxP3IBfoNmRPtJYnrY6X+KyUduIbMW Dn79AHbCtubEy0S3gDdT+K+S1yuLArfbNmpHPA4QkaKUJt62ndiw== X-ME-Sender: X-Sasl-enc: SRgdhNOXjEZVn+AUVDGPQqssv+Cxu2hAZQE/6pnzdlEy 1507116117 Original-Received: from borealis (23-116-242-116.lightspeed.chtnsc.sbcglobal.net [23.116.242.116]) by mail.messagingengine.com (Postfix) with ESMTPA id 0E54124570; Wed, 4 Oct 2017 07:21:57 -0400 (EDT) In-reply-to: <831smjz2b2.fsf@gnu.org> 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: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:137896 Archived-At: > Eli Zaretskii writes: > > Isn't it strange that only some people see these problems, while > others (the majority?) are very happy with double-buffering? Could it > be that the problems are triggered by some specific system > configurations or Emacs build-time features? If so, we could perhaps > turn it off only for those configurations, because people who are > happy with this are extremely happy, and will probably be disappointed > if we just turn it off globally. I'm currently using a Dell XPS 15 laptop with a 4K display and running at a resolution of 3840x2160. I've noticed that the problem almost entirely disappears when I resize the window to a smaller size (roughly between 1/2 and 1/3 of the screen) instead of being fullscreen. It's possible that this is only being noticed at higher resolutions.