From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?IkLDvGhtYW5uLCBSYWltYXIi?= Subject: ideapad-laptop: cat fan_mode incorrect value on Lenovo S20-30 Date: Fri, 26 Sep 2014 22:38:03 +0200 Message-ID: <5425CEAB.5040002@Buehmann.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from relay2.mail.vrmd.de ([81.28.224.28]:59460 "EHLO relay2.mail.vrmd.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755127AbaIZUxH (ORCPT ); Fri, 26 Sep 2014 16:53:07 -0400 Received: from [89.182.117.104] (helo=[192.168.0.35]) by relay2.mail.vrmd.de with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1XXcGp-0005G0-8V for platform-driver-x86@vger.kernel.org; Fri, 26 Sep 2014 22:37:39 +0200 Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: platform-driver-x86@vger.kernel.org Hi all, on my new Lenovo S20-30 with automatically loaded kernel module ideapad_laptop I am able to start interval mode of fan with echo '1'>/sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/fan_mode It is also possible to change it back to normal mode with '0'. But the result of cat /sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/fan_mode shows 133. All following executions of the same cat command show 5. This happens every time after the fan_mode has been changed. This seams to be a bug for me. Here is more about my hardware: https://wiki.archlinux.org/index.php/Lenovo_S20-30 Is it possible to fix this bug? Kind regards, Raimar