From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752018AbZJIFT0 (ORCPT ); Fri, 9 Oct 2009 01:19:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751509AbZJIFTX (ORCPT ); Fri, 9 Oct 2009 01:19:23 -0400 Received: from mga14.intel.com ([143.182.124.37]:30870 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751404AbZJIFTX (ORCPT ); Fri, 9 Oct 2009 01:19:23 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.44,530,1249282800"; d="scan'208";a="196903077" Subject: Re: [ERROR] drm:edid; Unexpected error messages in syslog From: ykzhao To: Peter Williams Cc: Dave Airlie , Linux Kernel Mailing List In-Reply-To: <4ACAE592.8030307@bigpond.net.au> References: <4ACAE592.8030307@bigpond.net.au> Content-Type: text/plain Organization: Intel Open Source Technology Center Date: Fri, 09 Oct 2009 13:17:48 +0800 Message-Id: <1255065468.3601.24.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1 (2.22.1-2.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2009-10-06 at 14:37 +0800, Peter Williams wrote: > I've started getting the following messages on recent kernels: > > Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:50:40 mudlark kernel: > Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:50:40 mudlark kernel: > Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:50:41 mudlark kernel: [drm] DAC-6: set mode 1600x1200 16 > Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:50:45 mudlark kernel: > Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:50:45 mudlark kernel: > Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:50:45 mudlark kernel: > Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:51:00 mudlark kernel: > Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:51:00 mudlark kernel: > Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. > Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID > checksum is invalid, remainder is 16 > Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID: > Oct 5 16:51:00 mudlark kernel: > Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid. It seems that the EDID obtained from VGA monitor is incorrect. Will you please open a new bug in https://bugs.freedesktop.org/ and attach the output of dmesg, vbios.dump? The vbios.dump can be obtained by using the following commands: echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.dump echo 0 > /sys/devices/pci0000:00/0000:00:02.0/rom Thanks. > > Should I worry about these? There's no other noticeable problem with > the system. > > Peter