From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Breitner Subject: Re: little system-hang when switching frequencies Date: Thu, 10 Jun 2004 18:58:22 +0200 Sender: cpufreq-bounces@www.linux.org.uk Message-ID: <1086886702.5951.11.camel@localhost> References: <1086717641.4311.30.camel@localhost> <20040609155946.GB9482@dominikbrodowski.de> <1086816407.2756.10.camel@localhost> <20040610081337.GA7723@dominikbrodowski.de> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20040610081337.GA7723@dominikbrodowski.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Content-Type: text/plain; charset="us-ascii" To: linux@dominikbrodowski.de Cc: cpufreq@www.linux.org.uk Am Do, den 10.06.2004 schrieb Dominik Brodowski um 10:13: > On Wed, Jun 09, 2004 at 11:26:47PM +0200, Thomas Breitner wrote: > > i don't understand the meaning of result "0", but it seems that the > > system needs *only* one - the first - try to switch from low to high > > frequency - but it needs always 6 retries to switch back. > > Result "0" means there's no postive or negative return value in =D; but the > "state" (=b) [ebx?] is still at the old state... > > > but: switching frequencies under the preinstalled win xp works "in both > > directions". how is this possible when it's the bios which is causing > > the "little system hang"? > > Hm, have you tried the ACPI P-States cpufreq driver? what great idea! it works out of the box! just a little tunig of cpufrqd.conf. i can now use the two P-states of my p-IIIm (Inspiron 8100): --- Jun 10 18:48:37 localhost kernel: cpufreq: CPU0 - ACPI performance management activated. Jun 10 18:48:37 localhost kernel: cpufreq: P0: 1000 MHz, 15800 mW, 500 uS Jun 10 18:48:37 localhost kernel: cpufreq: *P1: 733 MHz, 12500 mW, 500 uS --- and what's best: i have no "little system hangs when switching frequencies" anymore! thanks a lot, if you don't have any notes i forward this that the debian-cpufreqd-bug can be closed. cheers, thomas > Also, it might be that > win xp knows more about speedstep-smi than we do, as Intel didn't release > any specification on speedstep-smi... > > Dominik > > _______________________________________________ > Cpufreq mailing list > Cpufreq@www.linux.org.uk > http://www.linux.org.uk/mailman/listinfo/cpufreq -- ______________________________________ thomas breitner www.tombreit.de | mail@tombreit.de