Bug 444835

Summary:	Intel Core2 Duo CPU T5450 @ 1.66GHz detected as 1GHz
Product:	[Fedora] Fedora	Reporter:	Sergio Morais Lietti <sergio.lietti>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	8
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-04-30 23:22:13 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Sergio Morais Lietti 2008-04-30 21:57:13 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.14) Gecko/20080416 Fedora/2.0.0.14-1.fc8 Firefox/2.0.0.14

Description of problem:
Machine is a Dell Inspiron 1420. CPU clock wrongly detected:
[root@localhost etc]# grep Hz /proc/cpuinfo
model name      : Intel(R) Core(TM)2 Duo CPU     T5450  @ 1.66GHz
cpu MHz         : 1000.000
model name      : Intel(R) Core(TM)2 Duo CPU     T5450  @ 1.66GHz
cpu MHz         : 1000.000


Version-Release number of selected component (if applicable):
2.6.24.5-85.fc8

How reproducible:
Always


Steps to Reproduce:
1. grep Hz /proc/cpuinfo
2.
3.

Actual Results:
1.66GHz CPU detected as 1GHz

Expected Results:
1.66GHz CPU correctly detected

Additional info:

Comment 1 Dave Jones 2008-04-30 23:22:13 UTC

Power management is reducing your frequency when you're idle.