From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753967AbZENKH0 (ORCPT ); Thu, 14 May 2009 06:07:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752580AbZENKHL (ORCPT ); Thu, 14 May 2009 06:07:11 -0400 Received: from nexus.dynaweb.hu ([195.70.37.87]:39372 "EHLO nexus.dynaweb.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752552AbZENKHK (ORCPT ); Thu, 14 May 2009 06:07:10 -0400 X-Greylist: delayed 375 seconds by postgrey-1.27 at vger.kernel.org; Thu, 14 May 2009 06:07:10 EDT Date: Thu, 14 May 2009 12:00:54 +0200 From: RUMI Szabolcs To: linux-kernel@vger.kernel.org Subject: Intel Atom N280 cpufreq scaling problem Message-Id: <20090514120054.2e231948.rumi_ml@rtfm.hu> X-Mailer: Sylpheed 2.5.0 (GTK+ 2.14.7; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello there! I've got a shiny new netbook here with an Atom N280 1.66GHz (667MHz FSB) currently running Ubuntu 9.04 (Jaunty) from a LiveUSB key and the cpufreq scaling only scales between 800MHz and 1.33GHz but never sets the maximum supported speed of 1.66GHz. # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 1333000 1066000 800000 # uname -a Linux ubuntu 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux This is a relatively new chip released only a few months ago: http://ark.intel.com/cpu.aspx?groupID=41411 Is this a known problem? Is there maybe a fix? It could be due to my insufficient g00gling skills but I couldn't find anything about this issue so far... Thanks, Sab