Bug 455124 – cpuspeed not working

Bug 455124 - cpuspeed not working

Summary:	cpuspeed not working

Status:	CLOSED NOTABUG

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	cpuspeed (Show other bugs)
Sub Component:
Version:	9
Hardware:	x86_64 Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Jarod Wilson
QA Contact:	Fedora Extras Quality Assurance
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Reported:	2008-07-12 07:48 EDT by Sander
Modified:	2008-07-12 21:55 EDT (History)
CC List:	0 users

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Doc Type:	Bug Fix
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Last Closed:	2008-07-12 21:55:04 EDT
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Description Sander 2008-07-12 07:48:59 EDT

Description of problem:
The CPU is always running on the full clock speed. Cpuspeed is unable to start.

Version-Release number of selected component (if applicable):
cpuspeed v1.2.1

How reproducible:

Steps to Reproduce:
1. Boot system
2. Try to start cpuspeed (service cpuspeed start)
  
Actual results:
[root] service cpuspeed status
cpuspeed is stopped

Expected results:
[root] service cpuspeed status
cpuspeed started

Additional info:
Because cpuspeed is unable to start I tried to insert the module manually.

[root] modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq
(/lib/modules/2.6.25.9-76.fc9.x86_64/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko):
No such device

[root] ls /lib/modules/2.6.25.9-76.fc9.x86_64/kernel/arch/x86/kernel/cpu/cpufreq
acpi-cpufreq.ko  powernow-k8.ko

System is unable to find acpi_cpufreq.ko, but it does exist.

* cpuinfo
Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz

Comment 1 Jarod Wilson 2008-07-12 21:55:04 EDT

That cpu should be using acpi-cpufreq. The "No such device" upon modprobing it
indicates either your bios is broken, or frequency scaling is disabled in the
bios. Please double-check your bios settings, and if they claim frequency
scaling is enabled, check for a bios update, apply it and see what you can see.
Chances are rather slim this is actually a software bug.

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