From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark H Weaver Subject: Re: Xorg tearing fix on Intel HD Graphics 4000 Date: Wed, 28 Jun 2017 14:14:55 -0400 Message-ID: <87lgocnfmo.fsf@netris.org> References: <877f053hc7.fsf@gnu.org> <87lgodfhru.fsf@netris.org> <8737ak5xkf.fsf@igalia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:57231) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQHUr-0003tx-E4 for guix-devel@gnu.org; Wed, 28 Jun 2017 14:15:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dQHUl-0006XV-SZ for guix-devel@gnu.org; Wed, 28 Jun 2017 14:15:25 -0400 Received: from world.peace.net ([50.252.239.5]:58503) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dQHUl-0006Op-OR for guix-devel@gnu.org; Wed, 28 Jun 2017 14:15:19 -0400 In-Reply-To: <8737ak5xkf.fsf@igalia.com> (Andy Wingo's message of "Wed, 28 Jun 2017 10:24:48 +0200") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Andy Wingo Cc: guix-devel Andy Wingo writes: > On Tue 27 Jun 2017 19:43, Mark H Weaver writes: > >> In the meantime, how would you feel about pushing the following commit >> to master? It would still allow the use of SNA by explicitly asking for >> it in xorg.conf, but auto-configuration would choose UXA by default. >> >> What do you think? > > Looks good to me. Pushed as commit b049ae2f9708794f83c41171c19ffdfe4f11807e on master. > We should report the problem though... ok I did that here: > > https://bugs.freedesktop.org/show_bug.cgi?id=101620 Thank you! I see that there has already been an informative response from Chris Wilson: The issue is that gnome-shell is not synchrosing its texture reads with X rendering because mesa's glXWaitX() is broken. Mark