From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756724AbZBRU4w (ORCPT ); Wed, 18 Feb 2009 15:56:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753763AbZBRU4o (ORCPT ); Wed, 18 Feb 2009 15:56:44 -0500 Received: from ogre.sisk.pl ([217.79.144.158]:43880 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753572AbZBRU4o (ORCPT ); Wed, 18 Feb 2009 15:56:44 -0500 From: "Rafael J. Wysocki" To: Jesse Barnes Subject: Re: i915 regression in 2.6.29-rc5 Date: Wed, 18 Feb 2009 21:56:19 +0100 User-Agent: KMail/1.11.0 (Linux/2.6.29-rc5-tst; KDE/4.2.0; x86_64; ; ) Cc: ZhangRui , dri_devel@lists.sourceforge.net, LKML References: <1234927467.4707.15.camel@rzhang-desktop> <200902180953.50799.jbarnes@virtuousgeek.org> In-Reply-To: <200902180953.50799.jbarnes@virtuousgeek.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902182156.20140.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 18 February 2009, Jesse Barnes wrote: > On Tuesday, February 17, 2009 7:24 pm ZhangRui wrote: > > Hi, all, > > > > I got an i915 failure in 2.6.29-rc5. > > > > problem description: the screen doesn't come back after suspend/resume. > > A workaround is to boot with "nomodesetting". > > > > I got this error message during i915 driver load time, > > [ 22.606749] mtrr: type mismatch for e0000000,10000000 old: write-back > > new: write-combining [ 22.606752] [drm] MTRR allocation failed > > [ 22.606753] . Graphics performance may suffer. > > > > and this during s3 suspend, > > [ 1093.793257] PM: Syncing filesystems ... done. > > [ 1093.797692] PM: Preparing system for mem sleep > > [ 1094.119502] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank > > count for disabled pipe 1 [ 1094.514290] Freezing user space processes ... > > (elapsed 0.00 seconds) done. [ 1094.514726] Freezing remaining freezable > > tasks ... (elapsed 0.02 seconds) done. > > > > the problem seems to be related with commit > > 9880b7a527ffbb52f65c2de0a8d4eea86e24775e > > Note to Rafael: this is not a regression from 2.6.28 since the KMS code is new > with 2.6.29. Yes, I know. It's already been reported for a couple of times. ;-) Thanks, Rafael