From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Eschenbacher Subject: Re: freqency scaling on compaq nx9010 Date: Sun, 09 Jan 2005 21:33:08 -0300 Message-ID: <41E1CD44.1090107@gmx.de> References: <41E1B46D.1070107@gmx.de> <20050109225655.GA27910@dominikbrodowski.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20050109225655.GA27910-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org> 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: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Dominik Brodowski wrote: > [...] >>I have a compaq nx9010 laptop, running on kernel 2.6.9-gentoo-r13, with >>ACPI enabled and speedstep for frequency scaling. > > Which variant of speedstep? The file "scaling_driver" told me it was "speedstep-smi". (which makes no sense to me, I have an ALI and no Intel chipset...) No idea what it really was, I saw no kernel message about speedstep or so. (ACPI version is 20040816) > [...] >>On the other hand my dsdt contains two entries in the _PSS section, one >>for 3059MHz (100%) and one for 1596MHz (~50%) - but those two >>frequencies appear nowhere in /proc or /sys/devices/... !? > > What does using the acpi-cpufreq driver lead to? ...to success :-) Great, this was the right hint! I kicked out all speedstep stuff from my kernel config and now I see 30590000 and 15960000 in /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies - the same values as in my DSDT, using acpi-cpufreq as driver. So what would be the advantage of speedstep over acpi-cpufreq ? Does it also switch core voltage or do other things? thanks for the quick reply and the help, Thomas ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt