From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: fans not working after suspend to disk on nc-4000 and nc-8000 Date: Wed, 7 Sep 2005 20:32:18 +0200 Message-ID: <20050907183218.GA773@openzaurus.ucw.cz> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Miklos Szeredi Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi! > On the nc-4000 and nc-8000 notebooks, there's a problem with the fan > control after a resume from hiberantion. This is a long standing > problem with an otherwise perfectly working hibernation. Tried with > 2.6.10 to 2.6.13, and with suspend to disk and swsusp2. > > After resume the fans are not switched on (or off) based on > temperature. This is pretty dangerous, and makes hibernation > basically unusable for me. acpi=off should solve it, too :-). > Unloading the ACPI modules before suspend, and reloding them after > resume doesn't help. > > Setting /proc/acpi/thermal_zone/TZ1/polling_frequency to some > value after resume _sometimes_ helps, but not reliably. Does echo 0/3 > /proc/acpi/fan/*/state still work after resume? Is kacpid looping after resume? Is /proc/a*/thermal*/*/temperature still showing believable values? Does passive cooling work for you? Can you send me your trip_points? Pavel -- 64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf