Re: cpufreq stopped working

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Thanks a lot for your help Leonid.

I don't know if this list allows attachments, so I better send you a link:
https://dl.dropbox.com/u/208940/journalctl


On Sat, Jun 30, 2012 at 5:24 PM, Leonid Isaev <lisaev@xxxxxxxxxxxx> wrote:

> On Sat, 30 Jun 2012 21:37:39 +0100
> Leonidas Spyropoulos <artafinde@xxxxxxxxx> wrote:
>
> > On Jun 30, 2012 4:01 PM, "Leonid Isaev" <lisaev@xxxxxxxxxxxx> wrote:
> > >
> > > On Sat, 30 Jun 2012 10:05:29 -0400
> > > Martin Zecher <mzecher@xxxxxxxxx> wrote:
> > >
> > > > Thanks for answering.
> > > >
> > > > I already installed cpupower with no luck. I think that the problem
> is
> > > > related with the module acpi_cpufreq, which loads but does nothing at
> > all.
> > >
> > > For basic (automatic) scaling you don't need either cpupower nor
> cpufreq
> > nor
> > > MODULES=(acpi_cpufreq) with linux 3.4.x.
> >
> > Can you elaborate in that a bit more? Does the kernel handle that? What
> > does the cpupower  or cpufreq offer more?
>
> Yes, it's what they call CPU driver autoprobing:
>
> http://kernelnewbies.org/Linux_3.4#head-9df4e508cb97f4e138c590b9ccff3e0eda6cc7fc
> .
>
> Basically, if your CPU supports scaling, the corresponding driver will be
> loaded automatically. This and the fact that arch kernel now defaults to
> ONDEMAND governor (CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y, FS#28778),
> eliminates the need for userspace tools and explicit module loading.
>
> If you want just default scaling (within hw defaults), you don't have to do
> anything beyond enabling speedstep/coolnquiet in BIOS. But if you want to
> see
> various info, control frequency range (to downclock, for instance) or
> change
> the governor from the userspace, you'll have to install either cpupower or
> cpufrequtils. Of course, you could achive some of it functionality by
> simply
> echoing parameters to corresponding files in /sys/devices/system/cpu/*.
>
> If you need to control frequency based on acpi events, you'll probably need
> cpupower: https://wiki.archlinux.org/index.php/CPU_Frequency_Scaling.
>
> >
> > From your previous email, it follows
> > > that your kernel oopses. Please show the complete relevant piece from
> > > kernel.log (or whatever place systemd logs to, not grepped). Also, you
> > could
> > > try booting w/o nvidia to not taint kernel.
> > >
> > > >
> > > >
> > > > On Sat, Jun 30, 2012 at 7:58 AM, Jesse Juhani Jaara
> > > > <jesse.jaara@xxxxxxxxx>wrote:
> > > >
> > > > > la, 2012-06-30 kello 01:14 -0400, Martin Zecher kirjoitti:
> > > > > > I'm not really sure when cpufreq stopped working, maybe 2 or 3
> > months
> > > > > ago.
> > > > > > It was working fine before and I don't really remember making any
> > change
> > > > > in
> > > > > > configuration.
> > > > >
> > > > > Cpufreq utils are deprecated and replaced with cpupower utils. Try
> > > > > installing cpupower and see if it works ^_^
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> > >
> > > --
> > > Leonid Isaev
> > > GnuPG key: 0x164B5A6D
> > > Fingerprint: C0DF 20D0 C075 C3F1 E1BE  775A A7AE F6CB 164B 5A6D
>
> --
> Leonid Isaev
> GnuPG key: 0x164B5A6D
> Fingerprint: C0DF 20D0 C075 C3F1 E1BE  775A A7AE F6CB 164B 5A6D
>



-- 
Martin

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