From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Glenn Morris Newsgroups: gmane.emacs.bugs Subject: bug#1867: Resizing window causes text flickering when using antialiased font on X Date: Tue, 04 Oct 2011 21:13:39 -0400 Message-ID: References: <87ljtgzvgg.fsf@unicorn.lan> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1317777252 31035 80.91.229.12 (5 Oct 2011 01:14:12 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 5 Oct 2011 01:14:12 +0000 (UTC) Cc: 1867@debbugs.gnu.org To: Bo Lin Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 05 03:14:08 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RBG3i-0003JN-Io for geb-bug-gnu-emacs@m.gmane.org; Wed, 05 Oct 2011 03:14:06 +0200 Original-Received: from localhost ([::1]:40475 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RBG3h-0005UU-W3 for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Oct 2011 21:14:05 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:49921) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RBG3f-0005UD-AS for bug-gnu-emacs@gnu.org; Tue, 04 Oct 2011 21:14:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RBG3e-0001si-4O for bug-gnu-emacs@gnu.org; Tue, 04 Oct 2011 21:14:03 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:55381) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RBG3d-0001se-VZ for bug-gnu-emacs@gnu.org; Tue, 04 Oct 2011 21:14:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1RBG3d-0000VB-Vi for bug-gnu-emacs@gnu.org; Tue, 04 Oct 2011 21:14:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Glenn Morris Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 05 Oct 2011 01:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 1867 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 1867-submit@debbugs.gnu.org id=B1867.13177772231897 (code B ref 1867); Wed, 05 Oct 2011 01:14:01 +0000 Original-Received: (at 1867) by debbugs.gnu.org; 5 Oct 2011 01:13:43 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RBG3K-0000UX-MF for submit@debbugs.gnu.org; Tue, 04 Oct 2011 21:13:43 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RBG3H-0000UQ-Q3 for 1867@debbugs.gnu.org; Tue, 04 Oct 2011 21:13:41 -0400 Original-Received: from rgm by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1RBG3H-00039M-44; Tue, 04 Oct 2011 21:13:39 -0400 X-Spook: Treasury computer terrorism pre-emptive 2600 Magazine X-Ran: TA|{~6d&G;R{CrPJ|j:@PN&G3mAUwywN0q"bhfd:o]ru[45JzmONa&D?HF1'.A|g*t(oZ1 X-Hue: magenta X-Attribution: GM In-Reply-To: <87ljtgzvgg.fsf@unicorn.lan> (Bo Lin's message of "Mon, 12 Jan 2009 18:10:07 +0800") User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Tue, 04 Oct 2011 21:14:01 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:52192 Archived-At: Bo Lin wrote: > 1. Choose a font FONTNAME which supports antialiasing. Confirm > antialiasing is turned on for FONTNAME in fontconfig: > > $ fc-match -v FONTNAME |grep antialias > antialias: FcTrue(w) > > 2. emacs -q > 3. M-: (set-face-attribute 'default nil :font "FONTNAME") > 4. C-x 3 C-x 2 > > Now there are three windows. We'll name the upper-left window 1, > lower-left window 2, and the right window 3. > > 5. C-x b *scratch* RET C-x o C-x b *Messages* RET C-x o C-h i > 6. Using mouse, quickly drag mode-line of window 1 up and down. > > Observe how text in window 1 and 3 flicker as windows 1 and 2 are > resized. The main point is that window 3, though totally unaffected by > the resizing of windows 1 and 2 and showing a different buffer, is still > been constantly redrawn. This quite annoying, as even when the > mini-buffer window resizes, which happens quite frequently, will cause > the whole frame to flicker. > > This flickering does *not* occur if using old X core fonts. To confirm, > start with `emacs -q -fn fixed' and repeat steps 4-6. [...] > In GNU Emacs 23.0.60.7 (i686-pc-linux-gnu, GTK+ Version 2.14.4) > of 2009-01-12 on unicorn > Windowing system distributor `The X.Org Foundation', version 11.0.10502000 I don't seem to be able to reproduce this. Do you still see this with the latest version of Emacs?