Arch Linux

foobarch

Member

Registered: 2009-10-13

Posts: 66

modprobe acpi-cpufreq fails

Hi.

$ sudo modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.35-ARCH/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device

The module is there:

$ ls -l /lib/modules/2.6.35-ARCH/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko
-rw-r--r-- 1 root root 16171 Sep 29 08:47 /lib/modules/2.6.35-ARCH/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko

The wiki says [1] for older CPUs, I have to expect this error, but my CPU isn't really old:

model name      : Intel(R) Core(TM)2 Duo CPU     T9400

What's wrong?

Thank you.

[1] http://wiki.archlinux.org/index.php/Cpufreq#Intel

itman

Member

From: Switzerland

Registered: 2010-05-21

Posts: 124

Re: modprobe acpi-cpufreq fails

did you add

acpi_osi=Linux

to your kernel-parameters?

foobarch

Member

Registered: 2009-10-13

Posts: 66

Re: modprobe acpi-cpufreq fails

Tried it. Doesn't help. Nobody else has this CPU? (Intel T9400)

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,597

Website

Re: modprobe acpi-cpufreq fails

My laptop does... no problems modprobing

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CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

tarakbumba

Member

From: Turkiye

Registered: 2008-07-17

Posts: 72

Re: modprobe acpi-cpufreq fails

I have exact same problem as @foobarch has. My cpu is not an old one either: AMD Phenom II x3 BE . Would anyone help to solve this issue?

EDIT: I was using Mandriva Linux 2010.1 before and didn't have a problem with cpu frequency scaling. It just worked. I' m sure my BIOS settings ar fine.

Last edited by tarakbumba (2011-01-21 12:07:00)

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Say what you mean, mean what you say

tarakbumba

Member

From: Turkiye

Registered: 2008-07-17

Posts: 72

Re: modprobe acpi-cpufreq fails

I have partly solved this issue. While cool'n quiet feature is enabled in my BIOS settings; i have overclocked my cpu from BIOS. That's why cpufreq didn't work. Somehow, my BIOS disables cool'n quiet (altough it shows enabled in settings) when cpu is overclocked. Now i set my cpu to standart clocking and cpu frequency scaling begin to work. However, it runs in performance mode but i have configured it as ondemand in /etc/conf.d/cpufreq settings. Any ideas?

[SOLVED] :
Somehow, min and max freq were uncommented in /etc/conf.d/cpufreq. I comment them and now it works!

Last edited by tarakbumba (2011-01-29 00:00:31)

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Say what you mean, mean what you say