From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755600AbZBRRyI (ORCPT ); Wed, 18 Feb 2009 12:54:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751420AbZBRRxy (ORCPT ); Wed, 18 Feb 2009 12:53:54 -0500 Received: from outbound-mail-103.bluehost.com ([69.89.22.13]:37781 "HELO outbound-mail-103.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751938AbZBRRxx (ORCPT ); Wed, 18 Feb 2009 12:53:53 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id:X-Identified-User; b=aVdilLPDTrEMjAV1Mj51gfxfleArcA6jXioc70M2zYw4O73r76aP4VmDANNYVXNAKo6gpwwauLHCaujfrWFwLEoeMLjb2NHzLqDRWAliYeWH2+0pxtaqRpgkzmA075Qf; From: Jesse Barnes To: ZhangRui Subject: Re: i915 regression in 2.6.29-rc5 Date: Wed, 18 Feb 2009 09:53:50 -0800 User-Agent: KMail/1.9.10 Cc: dri_devel@lists.sourceforge.net, LKML , "Rafael J. Wysocki" References: <1234927467.4707.15.camel@rzhang-desktop> In-Reply-To: <1234927467.4707.15.camel@rzhang-desktop> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902180953.50799.jbarnes@virtuousgeek.org> X-Identified-User: {642:box128.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 75.111.27.49 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. -- Jesse Barnes, Intel Open Source Technology Center