From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 17001] ondemand governor non-functional / ACPI P-states driver Date: Thu, 26 Aug 2010 11:14:43 GMT Message-ID: <201008261114.o7QBEhGT024642@demeter1.kernel.org> References: Mime-Version: 1.0 Return-path: In-Reply-To: Sender: cpufreq-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: cpufreq@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=17001 Thomas Renninger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |cpufreq@vger.kernel.org, | |trenn@suse.de AssignedTo|cpufreq@vger.kernel.org |trenn@suse.de --- Comment #2 from Thomas Renninger 2010-08-26 11:14:39 --- > Here's some sysfs info But this is with the working performance governor, better would be if you show sysfs files in broken case. Could it be that you did the performance vs ondemand governor check at different times or did you simply echo performance >scaling_governor and things started to work? Background: The frequency might get limited on purpose for whatever reason. If you e.g. rebooted in between, the temperature (or whatever limitation reason), might be different and this is not a governor, but a general freq limiting issue. Best you check whether you run the latest BIOS and update if not. If the problem persists, go through the BIOS options and search for SpeedStep, CPU frequency, P-state or power management related options. Possibly you find a knob which fixes the issue. If you still see this, please use a recent kernel (2.6.34 or above) and provide the output of: for x in /sys/devices/system/cpu/cpu0/cpufreq/*;do echo $x;cat $x;done If you see the issue. Also try whether it really seem to be an ondemand issue by switching governors manually several times: echo performance >scaling_governor echo ondemand >scaling_governor and make sure this really only happens with ondemand. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. You are the assignee for the bug.