From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753855Ab2DBTAS (ORCPT ); Mon, 2 Apr 2012 15:00:18 -0400 Received: from mail-wg0-f42.google.com ([74.125.82.42]:64304 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752540Ab2DBTAQ convert rfc822-to-8bit (ORCPT ); Mon, 2 Apr 2012 15:00:16 -0400 From: Maciej Rutecki Reply-To: maciej.rutecki@gmail.com To: Daniel Vetter Subject: Re: [3.4-rc1][Regression][intel] Resume from suspend to disk hangs on restoring backlight state Date: Mon, 2 Apr 2012 21:00:11 +0200 User-Agent: KMail/1.13.7 (Linux/3.4.0-rc1; KDE/4.7.4; x86_64; ; ) Cc: Linux Kernel Mailing List , dri-devel@lists.freedesktop.org, "Rafael J. Wysocki" References: <201204021939.39603.maciej.rutecki@gmail.com> <20120402175402.GA5260@phenom.ffwll.local> In-Reply-To: <20120402175402.GA5260@phenom.ffwll.local> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Message-Id: <201204022100.11096.maciej.rutecki@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On poniedziałek, 2 kwietnia 2012 o 19:54:02 Daniel Vetter wrote: > On Mon, Apr 02, 2012 at 07:39:39PM +0200, Maciej Rutecki wrote: > > Last known good: 3.3 > > Bad kernel: 3.4-rc1 > > Subsystem: power management/suspend/dri(intel) > > > > When I resume from suspend to disk then system hangs on this screen: > > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/DSC_5479.jpg > > > > It does not help SysRq keys. Only I can force power off by hold power > > button. > > > > Dmesg: > > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/dmesg-3.4-rc1.t > > xt > > > > Config: > > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/config-3.4.0-rc > > 1 > > Likely a known regression, ppgtt support broke hibernate because my code > doesn't restore the ppgtt page directory correctly in the thaw function. > > Patch: > http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-fixes&id= > 55a254ac63a3ac1867d1501030e7fba69c7d4aeb > > Please test whether this fixes your issue. You can also try adding > i915.i915_enable_ppgtt=0 to your kernel cmdline. > > Thanks, Daniel Patch solves problem. Now resume hangs later on another subsystem: wireless :D Regards -- Maciej Rutecki http://www.mrutecki.pl