From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Re: Centrino speedstep Date: Wed, 29 Dec 2004 21:59:05 +0100 Message-ID: <20041229205905.GA12181@dominikbrodowski.de> References: <20041228212653.GA8436@dominikbrodowski.de> <41D30842.4040204@paranoici.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <41D30842.4040204-XtQPfPCVGG7srOwW+9ziJQ@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: Ultrakorne Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, Johan Vromans List-Id: linux-acpi@vger.kernel.org On Wed, Dec 29, 2004 at 08:40:50PM +0100, Ultrakorne wrote: > Johan Vromans wrote: > >The acpi-cpufreq driver loads, and the cpufreq tools seem to do > >something. But do they actually work? E.g. cpufreq-info reports that > >the limits are 1.6G - 600M, and cpufreq-set accepts 1.6G (confirmed by > >/proc/cpuinfo) but my CPU is only 1.5G... > > > >-- Johan > > > > the same thing happen to my centrino, i have a 1.5g , and acpi-cpufreq > set min 600 max 1.6G ... i manually echoed a new maximum of 1.5 ... > the scaling seems to work fine, it automatically switch from 600 to 1500 You should fix the DSDT and replace the frequency value of the P0 state with 1500 instead of 1600. Else frequency calculations in the kernel get mixed up which can cause too short or too long delays. Dominik ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/