Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757327AbXFLNCA (ORCPT ); Tue, 12 Jun 2007 09:02:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755933AbXFLNBw (ORCPT ); Tue, 12 Jun 2007 09:01:52 -0400 Received: from hobbit.corpit.ru ([81.13.94.6]:22393 "EHLO hobbit.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754839AbXFLNBv (ORCPT ); Tue, 12 Jun 2007 09:01:51 -0400 Message-ID: <466E993D.5080308@msgid.tls.msk.ru> Date: Tue, 12 Jun 2007 17:01:49 +0400 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Icedove 1.5.0.10 (X11/20070329) MIME-Version: 1.0 To: Claas Langbehn CC: Linux-kernel Subject: Re: VIA C7 / VIA PC-1 (PC2500) anyone? References: <466E65A7.3000206@msgid.tls.msk.ru> <5699f8f00706120344h40fe6f88vb7601c9326bd589f@mail.gmail.com> <466E8A5B.4080205@msgid.tls.msk.ru> <466E976D.7060103@rootdir.de> In-Reply-To: <466E976D.7060103@rootdir.de> X-Enigmail-Version: 0.94.2.0 OpenPGP: id=4F9CF57E Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1885 Lines: 55 Claas Langbehn wrote: >> Hmm. I wonder how to *enable* it in the first place.. ;) >> e_powersaver.ko and acpi_cpufreq gives "No such device" >> > cat /proc/cpuinfo and have a look at the flags. Does it support "eps"? I've looked at e_powersaver sources and noticied the second test in init function (after checking for CPU model) - it fails on this very test: if (!cpu_has(c, X86_FEATURE_EST)) return -ENODEV; (this is one of first things I did when turning the mobo on - tried various options including CPU frequency scaling, observed it doesn't work and tried to understand why, but didn't went much further here because of the SIGSEGV problem which is much more serious... ;) /proc/cpuinfo does not have "eps" (nor "est") flags: processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 10 model name : VIA Esther processor 1500MHz stepping : 9 cpu MHz : 1496.321 cache size : 128 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge cmov pat clflush acpi mmx fxsr sse sse2 tm nx up pni rng rng_en ace ace_en ace2 ace2_en phe phe_en pmm pmm_en bogomips : 3002.25 clflush size : 64 (most close is "sep" ;) > If not then e_powersaver is not possible. If cpufreq with acpi P-states > does not work either then your mainboard/CPU does not support > power saving. > You might get in contact with Rafal Bilinski who wrote e_powersaver. Yeah, good idea.. thanks! ;) /mjt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/