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 04:05:17 -0200 Organization: GNU Project Message-ID: <54586C9D.2000801@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> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="vlSCHcs89SloCeVfmb2L9lsKlXcCDkNo5" X-Trace: ger.gmane.org 1415081177 11211 80.91.229.3 (4 Nov 2014 06:06:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 4 Nov 2014 06:06:17 +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 07:06:09 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 1XlXFp-0002re-BY for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Nov 2014 07:06:09 +0100 Original-Received: from localhost ([::1]:38585 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlXFo-0000su-Tq for geb-bug-gnu-emacs@m.gmane.org; Tue, 04 Nov 2014 01:06:08 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57408) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlXFk-0000so-U4 for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 01:06:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XlXFi-0002uq-4R for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 01:06:04 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:50840) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlXFi-0002um-13 for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 01:06:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XlXFh-0008RK-SA for bug-gnu-emacs@gnu.org; Tue, 04 Nov 2014 01:06:01 -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 06:06:01 +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=B18912.141508114232389 (code B ref 18912); Tue, 04 Nov 2014 06:06:01 +0000 Original-Received: (at 18912) by debbugs.gnu.org; 4 Nov 2014 06:05:42 +0000 Original-Received: from localhost ([127.0.0.1]:48042 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XlXFN-0008QK-LD for submit@debbugs.gnu.org; Tue, 04 Nov 2014 01:05:41 -0500 Original-Received: from fencepost.gnu.org ([208.118.235.10]:50181) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XlXFK-0008QA-CR for 18912@debbugs.gnu.org; Tue, 04 Nov 2014 01:05:39 -0500 Original-Received: from 189-015-183-238.xd-dynamic.ctbcnetsuper.com.br ([189.15.183.238]:60294 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 1XlXFI-0005Rz-Dv; Tue, 04 Nov 2014 01:05:37 -0500 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:33.0) Gecko/20100101 Firefox/33.0 SeaMonkey/2.30 In-Reply-To: <8338a0vv6w.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:95459 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --vlSCHcs89SloCeVfmb2L9lsKlXcCDkNo5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Eli Zaretskii wrote: > Again identical. Looks like indeed it's some problem with your > graphics card, because Emacs gets the same information in both cases: > in both cases, only 1 pixel of the last line is visible. >=20 > I'll try to think about additional tests, but meanwhile I suggest that > you try lowering the level of the acceleration of your card, and see > if that helps. Totally disabling acceleration by using the driver's option "NoAccel", seems to fix the problem. The conclusion we reach is that it's not an Emacs bug, despite the fact that this weirdness only manifests in Emacs. I never have had any problem with my graphics card in the 5 years of usage of this machine, working with any kind of application you can imagine, being the "Emacs bug" the only exception. So we came to the point where we actually find that it's not possible to solve the bug, because it's beyond the realm of Emacs. That doesn't mean, however, that Emacs can't help to work around it! As Emacs is the only piece of software, that I know of, that triggers the bug, it's in principle equivalent to fix the problem in its root, or to make Emacs to work around it. Solving the actual bug seems at first glance much harder, as no one knows what's actually causing this mysterious bug, that only manifests in Emacs. On the other hand, we have a clear understanding of what feature Emacs has to provide to *virtually* fix the bug. So I kindly ask you: please, provide a way to make Emacs optionally redraw the mode-line after any scroll operation. ;-) --=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; --vlSCHcs89SloCeVfmb2L9lsKlXcCDkNo5 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 iQEcBAEBCgAGBQJUWGyjAAoJECe5xv0o1hivQlEH/RlPMxLxLx72/hMfR/DfoDOM /OXXC7qBLvidRlL5kSaDu/pTK+NPcBJFQ/kJL5wQawGm4eySl0WmsN7bNiuoqP6v H5GNCiL2Oce24CQfZer+lQ1tqdkNUKvh4tSVHlVuhcDA6xBZZcVCO2YE/Z3h+HLY 1aWsof4QHjIRtAnLQzUBmRIO+VCQ5UruFKZ8rBiOZsN/n6dtHn69fRnZEfAvGibz k76NVWuYepCbjsk4dNlceyBotwjSuITcaXvcPzrNnQ+hyXrPf2szV5KtRJehBhl0 CVbAXtXT8WSrvumsexhLrFgW99MNJDcw+1o5VvManp++eWjfnKgJcxmZBktLDdc= =lkmm -----END PGP SIGNATURE----- --vlSCHcs89SloCeVfmb2L9lsKlXcCDkNo5--