From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Herkt Subject: Re: ASUS PU551LD, fan stuck at full speed after waking up from S3 Date: Sat, 30 May 2015 15:11:49 +0200 Message-ID: <1782051.buOE1ZNEjm@sakuya> References: <1949840.6Csghk90X0@sakuya> <4235637.TmQrMxa1o1@vostro.rjw.lan> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7Bit Return-path: Received: from srsfckn.biz ([148.251.137.227]:52608 "EHLO srsfckn.biz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752733AbbE3NLw (ORCPT ); Sat, 30 May 2015 09:11:52 -0400 In-Reply-To: <4235637.TmQrMxa1o1@vostro.rjw.lan> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J. Wysocki" Cc: linux-acpi@vger.kernel.org, platform-driver-x86@vger.kernel.org, acpi4asus-user@lists.sourceforge.net, linux-pm@vger.kernel.org On Saturday 30 May 2015 14:14:06 Rafael J. Wysocki wrote: > On Friday, May 29, 2015 01:51:57 PM Martin Herkt wrote: > > My ASUS PU551LD laptop has a problem with its fan state when resuming from > > S3. In particular, the fan goes to full speed a second or two after > > waking up and cannot be reset without turning off the laptop. For > > example, rebooting to Windows and doing a suspend/resume cycle while the > > fan is in bad state will not reset it. I have observed this behavior with > > all kernel versions I have used on this laptop (oldest being 3.16, newest > > 4.1-rc5). > > > > sensors(1) does not show any fans, but asus-nb-wmi exposes > > /sys/class/hwmon/hwmon2/pwm1, which shows values like 85 during normal > > operation but goes to the expected 255 when the fan is running at full > > speed after waking up from S3. > > Can you please check if applying the patch at > > https://patchwork.kernel.org/patch/6451241/ > > on top of 4.1-rc5 makes any difference? No, still happens with that patch.