From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757490Ab1KRKGq (ORCPT ); Fri, 18 Nov 2011 05:06:46 -0500 Received: from orion.tchmachines.com ([208.76.84.200]:52626 "EHLO orion.tchmachines.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755163Ab1KRKGp (ORCPT ); Fri, 18 Nov 2011 05:06:45 -0500 Message-ID: <4EC62E2F.7010702@scalemp.com> Date: Fri, 18 Nov 2011 12:06:39 +0200 From: Eial Czerwacki Organization: ScaleMP User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.11) Gecko/20101020 Remi/fc8 Thunderbird/3.1.5 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: screen goes black suddenly while using drm/radeon and reboot of X is needed Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - orion.tchmachines.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - scalemp.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello All, I have a two seat multiseat config using two gpus. when I first boot the computer and starts to work with seat 0, after a few minutes my screen goes black and it behaves like it went to sleep. the system has two gpus, seat 1 uses an ati 5450HD at slot 1 (pcie2.0x16) and seat 0 uses an ati 3650HD at slot 1 (pciex4). this only happens after cold reboot/power cycle, after I restart X, it doesn't happens again. also this doesn't occurs on seat 1 so I suspect it has to do with the pci slot. I've manually disabled DPMS in X but I don't think that is the issue. I'm using kernel 3.1.1, my dmesg can be found at http://pastebin.com/TZHvDWNe and my lspci can be found at http://paste.pocoo.org/show/509652/ any ideas what can cause it? Thanks Eial.