From mboxrd@z Thu Jan 1 00:00:00 1970 From: Francis Russell Subject: Spurious power button event on resume from hibernate Date: Thu, 14 May 2009 22:27:03 +0100 Message-ID: <4A0C8CA7.2020104@unchartedbackwaters.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.unchartedbackwaters.co.uk ([78.110.170.111]:45588 "EHLO smtp.unchartedbackwaters.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753762AbZENVer (ORCPT ); Thu, 14 May 2009 17:34:47 -0400 Received: from [192.168.0.2] (host81-129-160-105.range81-129.btcentralplus.com [81.129.160.105]) by smtp.unchartedbackwaters.co.uk (Postfix) with ESMTPSA id 545FB135267 for ; Thu, 14 May 2009 22:27:05 +0100 (BST) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Hi all, I have a Samsung R560 laptop running amd64 Debian testing with a 2.6.29.3 kernel compiled from vanilla sources. Upon resume from hibernate, it appears that the OS receives a power button event that causes the system to shut down. I've verified this the best I can by killing acpid then watching the output of /proc/acpi/event during hibernate (triggered by writing 'disk' to /sys/power/state). This problem looked very similar to that discussed in another Bugzilla entry (http://bugzilla.kernel.org/show_bug.cgi?id=6612) so I had I extended the changes made by the patch in the obvious way to the S4 state but it made no difference. Is this something the kernel should be handling? How can I debug this further? Many thanks, Francis