From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: problems setting freq on dual core t2600, 2.6.17-1.2157_FC5smp Date: Thu, 03 Aug 2006 16:01:23 -0700 Message-ID: <44D28043.5010301@goop.org> References: <8be731880608030605x6dbeb691kc7079a9d51fe87e9@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <8be731880608030605x6dbeb691kc7079a9d51fe87e9@mail.gmail.com> 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: tobias.bocanegra@day.com Cc: cpufreq@lists.linux.org.uk, acpi-devel@kernel.org Tobias Bocanegra wrote: > hi, > i don't know if this is the correct list to ask this question, if not > just bash me :-) > > i have a intel dual core t2600 with 2.16ghz, running 2.6.17-1.2157_FC5smp I've seen similar stuff on my T2400, expecially after resume. Check the scaling_min/max_freq entries; I find that the cur is limited by their contents. I did a bit of debugging, and found the problem was that the acpi functions on the policy change notifier change were vetoing the change, because they though the max freq is 1GHz, rather than 1.83. Unfortunately I don't have any of the logs at the moment; I was going to do a more systematic examination of what's going on. But from a first cut, it seems that something in ACPI is getting a more or less random idea of what the current CPU max speed is. BTW, this is a Thinkpad X60 with the most current BIOS installed (1.06?). J