From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754166AbaCCJbe (ORCPT ); Mon, 3 Mar 2014 04:31:34 -0500 Received: from mga11.intel.com ([192.55.52.93]:6615 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753114AbaCCJbc (ORCPT ); Mon, 3 Mar 2014 04:31:32 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,576,1389772800"; d="scan'208";a="491168978" From: Jani Nikula To: prometheanfire@gentoo.org, daniel.vetter@ffwll.ch, airlied@linux.ie, intel-gfx@lists.freedesktop.org, "kernel\@gentoo.org" , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: i915 - Corruption on boot for 3.13.x In-Reply-To: <5310BE23.3060204@gentoo.org> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <5310BE23.3060204@gentoo.org> User-Agent: Notmuch/0.17+103~g5359c707b23e (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) Date: Mon, 03 Mar 2014 11:31:25 +0200 Message-ID: <87y50rpr0y.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 28 Feb 2014, Matthew Thode wrote: > Hardware is a T520 with a i5-2520M (intel only). > > Booting via uefi stub, kernel config is attached. > > This is broken on 3.13.x the video shows hardened kernel being booted, > but I've tested kernel.org sources as well with the same effect. > > I can boot, login and shutdown, etc; just graphics is broken. > > https://www.youtube.com/watch?v=yxDyvyJTrXs > > Think that's it, let me know if there's more info I can get you. Hi Matthew, thanks for the report. Please file a bug on DRM/Intel component at [1]. Just because my gut feeling says this will be better tracked there than by cluttering the list... On the bug, please indicate: Did this use to work? Which kernel version? Please disable i915.ko and see if there's still corruption in the fb. It's hard to see from the video whether the corruption starts before i915 gets loaded. Please attach dmesg from early boot with drm.debug=0xe module parameter set. BR, Jani. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI -- Jani Nikula, Intel Open Source Technology Center