Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751873AbaDASDG (ORCPT ); Tue, 1 Apr 2014 14:03:06 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:49825 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751565AbaDASDD (ORCPT ); Tue, 1 Apr 2014 14:03:03 -0400 Message-ID: <533AFF51.2070806@gmail.com> Date: Wed, 02 Apr 2014 02:02:57 +0800 From: Nicolas Porcel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Kieran Clancy CC: "D. G. Jansen" , Stefan Biereigel , Juan Manuel Cabo , Stefan Biereigel , Lan Tianyu , "linux-acpi@vger.kernel.org" , "linux-kernel@vger kernel org" , Len Brown , "Rafael J. Wysocki" , San Zamoyski , "D. Jansen" , "Maurizio D'Addona" Subject: Re: [REGRESSION 3.14-rc6] Samsung N150 lid does not "open" after suspend to RAM. References: <532FE3B2.9060808@biereigel-wb.de> <533014B1.4030307@biereigel-wb.de> <5331E5EB.5000304@biereigel-wb.de> <5331E9E4.4050201@gmail.com> <5332099B.8090305@gmail.com> <5332AF10.90109@biereigel.de> <533AA4A4.1010101@gmail.com> <533AAEA3.6070703@gmail.com> In-Reply-To: <533AAEA3.6070703@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I managed to recompile the kernel. Here is what I see in the logs: kernel: ACPI : EC: acpi_ec_clear: EC_SC 0x20 kernel: ACPI : EC: acpi_ec_clear: EC_SC 0x08 kernel: ACPI : EC: 1 stale EC events cleared I hope this will help Regards, Nicolas Porcel Le 01/04/2014 20:18, Nicolas Porcel a ?crit : > Sure, I understand that you need to test it, that's why I am asking. I > don't want an untested patch to be included in the kernel either. We > also have to make sure that the patch fix the regression for all the > affected Samsung laptops. > > For the EC_SC code, I am using the first version of the patch without > the pr_info line, so I need to recompile the kernel. I'll let you know > as soon as it's done. > > Best regards, > > Nicolas Porcel > > On 01/04/2014 19:58, Kieran Clancy wrote: >> On Tue, Apr 1, 2014 at 10:06 PM, Nicolas Porcel >> wrote: >>> Do you have any idea of how much time will it take to merge it to the >>> mainline ? >> Apologies for the breakage. The key here is that we want a patch which >> works 100% on all Samsung systems. If we rush a fix for this >> regression, we may risk breaking things on other systems. >> >> Fortunately, the work-around in the case of this regression is very >> simple (just repeat whatever event was ignored the first time, be it >> lid open, ac plug, etc) compared to the bug which the original patch >> fixed (which had no real workaround and caused near-permanent >> malfunction). >> >> This is why I am asking people with Samsung systems to test the patch >> (with the debug output I added in the kernel bugzilla attachment) and >> confirm that it is working. I am also asking them to report EC_SC data >> because we may be able to create a more targeted patch with this >> information. >> >> Speaking of which, can you please let me know the EC_SC bytes you see >> when you test it on your system, and if it is always the same? >> >> Once I hear back from users on a range of Samsung systems, I will >> submit a patch. It should have enough time to land before 3.15. I will >> also ask for it to be included in other stable branches. >> >> Kind regards, >> Kieran > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/