From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Bruno =?UTF-8?Q?F=C3=A9lix?= Rezende Ribeiro Newsgroups: gmane.emacs.bugs Subject: bug#18912: 24.4; mode-line corruption on graphical frames in dual-headed display Date: Tue, 04 Nov 2014 19:09:07 -0200 Organization: GNU Project Message-ID: <54594073.9070200@gnu.org> References: <54524135.8090405@gnu.org> <8361ezz56z.fsf@gnu.org> <5454D7EB.6060407@gnu.org> <83sii3xecv.fsf@gnu.org> <5456A6FE.90108@gnu.org> <83tx2hvtwp.fsf@gnu.org> <54571ABB.7020000@gnu.org> <83ppd4w910.fsf@gnu.org> <5457E044.9080300@gnu.org> <83bnoovxpi.fsf@gnu.org> <83a948vxh6.fsf@gnu.org> <837fzcvwph.fsf@gnu.org> <5457ED37.5080807@gnu.org> <8338a0vv6w.fsf@gnu.org> <54586C9D.2000801@gnu.org> <54588D65.8060506@gnu.org> <83sihzufav.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="WD8NCtOLdvHNMPPWRkrumpcR3VJ7Un2mv" X-Trace: ger.gmane.org 1415135418 31658 80.91.229.3 (4 Nov 2014 21:10:18 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 4 Nov 2014 21:10:18 +0000 (UTC) Cc: 18912@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Nov 04 22:10:11 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XllMg-0001MJ-31 for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Nov 2014 22:10:10 +0100 Original-Received: from localhost ([::1]:43009 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XllMf-0006BE-J0 for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Nov 2014 16:10:09 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44434) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XllMa-00068W-Se for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 16:10:05 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XllMZ-00079C-TN for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 16:10:04 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:52047) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XllMZ-00078J-QH for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 16:10:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XllMY-0005IF-UN for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 16:10:03 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Bruno =?UTF-8?Q?F=C3=A9lix?= Rezende Ribeiro Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 04 Nov 2014 21:10:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18912 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18912-submit@debbugs.gnu.org id=B18912.141513535720282 (code B ref 18912); Tue, 04 Nov 2014 21:10:02 +0000 Original-Received: (at 18912) by debbugs.gnu.org; 4 Nov 2014 21:09:17 +0000 Original-Received: from localhost ([127.0.0.1]:49258 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XllLp-0005H3-7t for submit@debbugs.gnu.org; Tue, 04 Nov 2014 16:09:17 -0500 Original-Received: from fencepost.gnu.org ([208.118.235.10]:39406) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XllLn-0005Gu-6c for 18912@debbugs.gnu.org; Tue, 04 Nov 2014 16:09:15 -0500 Original-Received: from 189-015-183-238.xd-dynamic.ctbcnetsuper.com.br ([189.15.183.238]:32826 helo=[192.168.1.17]) by fencepost.gnu.org with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1XllLl-0005Hj-39; Tue, 04 Nov 2014 16:09:14 -0500 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:33.0) Gecko/20100101 Firefox/33.0 SeaMonkey/2.30 In-Reply-To: <83sihzufav.fsf@gnu.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x 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:95511 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --WD8NCtOLdvHNMPPWRkrumpcR3VJ7Un2mv Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Eli Zaretskii wrote: > You'd need to explain how Emacs succeeds in that, when it uses Xlib > and higher-level APIs, which AFAIK are unaware of any accelerations. > Emacs itself is certainly unaware of that, and does the same things > regardless. The Emacs algorithms for redrawing the frame's content could be based on assumptions about the workings of graphical displays that fail to be true in some corner cases. > Moreover, the fact that running xrefresh, which is not an Emacs > command, fixes the display is yet another argument against this > hypothesis. xrefresh doesn't communicate with Emacs, so the only way > it could fix the display is if the data supplied by Emacs was correct. Of course 'xrefresh' command doesn't communicate directly with Emacs. It works by mapping a window, with no background, on top of the Emacs' frames, and then unmapping it, causing the X server to send a refresh event to Emacs, that handles it and repaints its frames. So Emacs *do know* how to get its frames right, when it wants to. --=20 ,=3D ,-_-. =3D. Bruno F=C3=A9lix Rezende Ribeiro (oitofelix) [0x28D618A= F] ((_/)o o(\_)) There is no system but GNU; `-'(. .)`-' GNU Linux-Libre is one of its official kernels; \_/ All software must be free as in freedom; --WD8NCtOLdvHNMPPWRkrumpcR3VJ7Un2mv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBCgAGBQJUWUBzAAoJECe5xv0o1hivroAH/RRSn4qm871+081VAKasvRHl zMUACqtP42nSHpZSbdnLdU76A/mqgfeJBvA05B0hoMlAKwT+FDTy/lPuuwzBGw4a BKjUmT1WxMJiAQBa86H5idNBCqKsFd3tWq2FUcfm524T5AZ+Dt5tcElPQIcHCb2e 1KVPa+Bg0DUVxxIL0S1qQKwSP6zm0PXM7UzN9sGspvs5Q/E6Um7l8vKOJYkqRU0a KRT4u2B7JmGvF/2RIuBH0j2+CLMYG80wTtotDnAlDDvHoivHudP8MgMkgk2xZqCi e5UlYrxUvehCRYOnPb/9Ox+arUfEaTQXUYhD8HaCRlet+OoQ8o9TeFtp8OEwjHo= =4jFR -----END PGP SIGNATURE----- --WD8NCtOLdvHNMPPWRkrumpcR3VJ7Un2mv--