Messages in this thread | | | Date | Mon, 7 Jan 2013 15:23:05 -0200 | Subject | Re: i7-2620M: Clock always high when on battery | From | Peter Senna Tschudin <> |
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On Tue, Jan 1, 2013 at 6:30 PM, devendra.aaru <devendra.aaru@gmail.com> wrote: > On Tue, Jan 1, 2013 at 3:17 PM, Peter Senna Tschudin > <peter.senna@gmail.com> wrote: >> I'm not sure if I'm emailing the right people. My problem is with >> dynamic clock and or power management. >> >> I'm using 3.6.10-2.fc17.x86_64 but the exact same problem happen with >> non Fedora Kernels like 3.7.1 and 3.6.11. >> >> I'm using Toshiba R830-10P notebook with i7-2620M cpu. >> >> The problem is that when I power on the notebook without the AC >> adapter the clock of all cores is always very close to 2,7GHz. It was >> expected that without load the clock would be around 800 Mhz. This >> issue is causing the notebook to get hot and reduces battery life. The >> same problem also happens when on AC power but it is uncommon. >> >> What can I do to diagnose the problem and collect more precise details? >> > > would you mind trying this > > echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor > > as root? > > but before cat that file to see whats the current cpu governor. When I: $ sudo cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ondemand
I'm trying to get a Bios update from Toshiba but no success yet.
> >> Peter >> >> -- >> Peter >> -- >> 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/
-- Peter
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