From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Wingo Subject: Re: Xorg tearing fix on Intel HD Graphics 4000 Date: Mon, 26 Jun 2017 10:55:58 +0200 Message-ID: References: <877f053hc7.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:45882) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dPPpB-0001AQ-0q for guix-devel@gnu.org; Mon, 26 Jun 2017 04:56:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dPPp7-0003n1-4s for guix-devel@gnu.org; Mon, 26 Jun 2017 04:56:49 -0400 In-Reply-To: <877f053hc7.fsf@gnu.org> (Roel Janssen's message of "Wed, 21 Jun 2017 09:55:46 +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: Roel Janssen Cc: guix-devel On Wed 21 Jun 2017 09:55, Roel Janssen writes: > For a long time now, I have a tearing issue on GuixSD (parts of the > screen do not get updated while others do, resulting in dissapearing > text in Emacs). Thank you for this work! I notice this since a month ago and haven't had time to delve into it. Horrible stuff. I wonder if it makes sense to update the intel driver to see if it fixed it? Then perhaps we could avoid the hack. There are commits here that touch SNA and things that look like they could be relevant: https://cgit.freedesktop.org/xorg/driver/xf86-video-intel/log/ As you probably know, the intel driver doesn't get proper releases :( You just have to take a tag from git. That's what we do now and perhaps updating the driver could fix this bug. Andy