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SubjectRe: bug? acpi p-state + ondemand keeps dropping max freq
On Sat 07. Jun - 14:54:35, Arjan van de Ven wrote:
> On Sat, 7 Jun 2008 23:39:18 +0200
> Pavel Machek <pavel@suse.cz> wrote:
>
> > > # echo 1866000 > scaling_max_freq ; cat scaling_max_freq
> > > 800000
> > > # echo 1866000 > scaling_max_freq ; cat scaling_max_freq
> > > 800000
> > >
> > >
> > > This renders my Dothan to utterly poor speeds. (standard T43)
> > >
> > > performance cpufreq governor makes no difference - I still can't
> > > change the frequency upper/lower values.
> >
> > Hmm, I have similar problem in Novell bugzilla, on very different hw:
> >
> > https://bugzilla.novell.com/show_bug.cgi?id=396311
> >
> > Pavel
> >
>
>
> are either of you running gnome-power-manager or kpowersaved ?
> sometimes these programs (and more likely, the patches added by a
> distro maintainer who doesn't fully realize how power works) tend to
> muck with kernel settings around CPU frequency that they have
> absolutely no business touching...

I'm not aware of any 'brand' of kpowersave or gnome-power-manager which
could interfere here. Nor I'm aware of any backends in recent distros
which tweak the 'max freq' knobs. So I don't think this can be related. Or
please be a little bit more detailed about what you're referring to...

Regards,
Holger


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