From debbugs-submit-bounces@debbugs.gnu.org Thu Oct 27 04:59:23 2016 Received: (at 24789) by debbugs.gnu.org; 27 Oct 2016 08:59:23 +0000 Received: from localhost ([127.0.0.1]:59547 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bzgWx-0004h4-GZ for submit@debbugs.gnu.org; Thu, 27 Oct 2016 04:59:23 -0400 Received: from mx.kolabnow.com ([95.128.36.1]:8844 helo=mx-out03.mykolab.com) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bzgWv-0004gr-51 for 24789@debbugs.gnu.org; Thu, 27 Oct 2016 04:59:21 -0400 X-Virus-Scanned: amavisd-new at kolabnow.com X-Spam-Flag: NO X-Spam-Score: -2.9 X-Spam-Level: X-Spam-Status: No, score=-2.9 tagged_above=-10 required=6.31 tests=[ALL_TRUSTED=-1, BAYES_00=-1.9] autolearn=ham Received: from mx05.mykolab.com (mx05.mykolab.com [10.20.7.161]) by mx-out03.mykolab.com (Postfix) with ESMTPS id A404321E5E; Thu, 27 Oct 2016 10:59:13 +0200 (CEST) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Thu, 27 Oct 2016 10:59:12 +0200 From: Petter To: ludo@gnu.org Subject: Re: bug#24789: Changing console renders my system unresponsive In-Reply-To: <874m3zthrm.fsf@gnu.org> References: <73ddf40b77af55bb11861bb3d68e024f@mykolab.ch> <874m3zthrm.fsf@gnu.org> Message-ID: <453ef86fc4e8957fa7ed12b6fb4215dc@mykolab.ch> X-Sender: petter@mykolab.ch X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 24789 Cc: 24789@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.7 (/) Did you try using an external monitor connected with DisplayPort? KMS Module in use (from /var/log/Xorg.0.log): [ 18.862] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20160711 As for Xorg driver in use, I'm not sure where or how to find this out. Grepping /var/log/Xorg.0.log for LoadModule in case that's helpful. If not, let me know how I can find it. 58:[ 18.637] (II) LoadModule: "glx" 70:[ 18.725] (II) LoadModule: "intel" 76:[ 18.747] (II) LoadModule: "modesetting" 82:[ 18.762] (II) LoadModule: "fbdev" 88:[ 18.771] (II) LoadModule: "vesa" 109:[ 18.864] (II) LoadModule: "fbdevhw" 145:[ 18.885] (II) LoadModule: "dri2" 148:[ 18.885] (II) LoadModule: "present" 190:[ 19.050] (II) LoadModule: "libinput" -- Petter On 2016-10-26 14:30, ludo@gnu.org wrote: > Petter skribis: > >> I'm having a pretty dramatic experience changing console, >> f.ex. Ctrl+Alt+F4. My system becomes completely unresponsive. Even >> Alt+SysRq+reisub is unable to persuade my system to perform a >> gentlemans reboot. To recover I must do a hard reboot. >> >> Bringing this up in #guix suggests it's not a common issue. >> >> My setup is: >> Libreboot X200 >> Docking station >> External monitor connected to the docking station with DisplayPort. >> XFCE >> GuixSD (from git, last commit in my repo >> c11933c920dd7b7cdf68e13e6b3718602129210a) > > [...] > >> I have no idea if this is really a Guix issue or not, maybe it's >> Linux-libre? > > I definitely don’t experience that on my laptop (not an X200). Perhaps > the KMS module and Xorg driver is at fault? Which ones are in use? > > (My laptop has an Intel graphics card, so i915.ko, though for some > reason Xorg uses xf86-video-intel instead of “modesetting”.) > > Ludo’.