From mboxrd@z Thu Jan 1 00:00:00 1970 From: Federico Flego Subject: ondemand governor hangs up on my Dell 5150 Date: Thu, 28 Jun 2007 20:44:06 +0200 Message-ID: <46840176.6050502@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:subject:content-type:content-transfer-encoding; b=OZ92+M+PCpdwCy/YQ4Hx02No1rw9FXrKG065lLFTFdGp+QdfpYIswetm607X8GOY+PX+ox0YvaRIal12ur8oAvZlk7WleK40C9br9/aON+ZcC9OuQj3pcDuMgZRm776B5iNi+LEPH1/qF5r+LJ5qKuqDDsrFrW3Uln1PLZOtT3M= List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk Content-Type: text/plain; charset="us-ascii"; format="flowed" To: cpufreq@lists.linux.org.uk Hi all! I'm new to this list and I'd like to have your feedback on the following problem I'm experimenting and which is starting to annoying me very much! After compiling a new kernel with cpu frequency scaling capabilities activated my system execute the following script at boot time: echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor /usr/bin/i8kfan 0 0 (*) And finally, I have my laptop quiet and with low battery consuption at least when I write e-mail read newspaper on line! :) The problem is that now and then the computer hangs and there's no way to reboot it but holding down the power-off button... thus losing any unsaved data and having to wait for a whole disk error checking at next boot! :( This problem is sort of repeatable, in fact whenever I launch mplayer the machine hangs up immediately 90% of the times. I thought a kernel upgrade can solve the problem, but kernel 2.6.21.5 didn't fix it! Can you tell me whether you experimented similar problem? And how you solved it in case? Or can you help me to understand what is the possible cause? My laptop is a Dell Inspiron 5150 with: cpu family : 15 model : 2 model name : Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz stepping : 9 cpu MHz : 3066.590 and os is: Linux gardelito 2.6.21.5-ARCH #1 SMP Tue Jun 19 19:43:55 CEST 2007 i686 Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz GenuineIntel GNU/Linux Thank you very very much for any help/hints you can provide... Federico. (*) I found out that if I stop the fan this way at boot time, then it is started/tuned/stopped depending on cpu temperature, otherwise it is kept speed controlled but never stopped.