From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751897AbcAANOZ (ORCPT ); Fri, 1 Jan 2016 08:14:25 -0500 Received: from dovecot.logic.tuwien.ac.at ([128.130.175.61]:35369 "EHLO mail.logic.tuwien.ac.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751661AbcAANOW (ORCPT ); Fri, 1 Jan 2016 08:14:22 -0500 Date: Fri, 1 Jan 2016 22:14:20 +0900 From: Norbert Preining To: Chris Bainbridge Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: 4.4-rc, intel dri i915, regular hangs and corruptions Message-ID: <20160101131419.GW23036@logic.at> References: <20151217183415.GG15645@logic.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Chris, thanks for your answer. I will try the latest intel driver, but in case it helps or you get an idea, I found that it has to do with the Antialiasing settings: I am using an OTF font (Lucida Sans OT Regular) with cinnamon. Sometimes when I wake the computer up from suspend to ram the fonts are gone. *BUT*: Switching from (in Font Settings of Cinnamon settings) Antialiasing: Grayscale *away* fixes the problem. WIth Antialiasing: Rgba or None the fonts remain stable as far as I can see, while with Grayscale they are disappearing. In fact I can turn the fonts off and on without a problem by simply swithcing the antialiasing. Maybe this rings a bell at someone. Thanks Norbert (please Cc) > On 17 December 2015 at 18:34, Norbert Preining wrote: > > * font corruption > > sometime sets of glyphs, or practically all glyphs disappear > > related probably to bug > > https://bugs.freedesktop.org/show_bug.cgi?id=55500 > > I have sent some info there already, without response > > > > Currently my font displays some kind of strange symbols instead of > > an m ... looks a bit like a Kanji. > > I remember a similar bug around 2.99.917 but that tag is over a year > old now and there have been many bug fixes since. You'll need to > verify you can still reproduce your issue with the latest from > git://anongit.freedesktop.org/xorg/driver/xf86-video-intel and if so > do a bisect from the previous working kernel or xf86-video-intel to > identify the problematic commit. ------------------------------------------------------------------------ PREINING, Norbert http://www.preining.info JAIST, Japan TeX Live & Debian Developer GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13 ------------------------------------------------------------------------