From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: freqency scaling on compaq nx9010 Date: Thu, 13 Jan 2005 16:08:53 +0100 Message-ID: <20050113150853.GA8430@dominikbrodowski.de> References: <41E1B46D.1070107@gmx.de> <20050109225655.GA27910@dominikbrodowski.de> <41E1CD44.1090107@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <41E1CD44.1090107-Mmb7MZpHnFY@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: Thomas Eschenbacher Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org On Sun, Jan 09, 2005 at 09:33:08PM -0300, Thomas Eschenbacher wrote: > 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) Then you used the wrong speedstep-driver, AFAICS. It is only meant for mobile Pentium III CPUs... I need to check why it didn't fail to load. > 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? The acpi-cpufreq driver (normally) also scales voltage, it may just be slower than speedstep-ich or speedstep-centrino. However, it's ot faster or slower than speedstep-smi. Dominik ------------------------------------------------------- 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