Bug 217182 – speedstep centrino support not enabled in kernel

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Bug 217182 - speedstep centrino support not enabled in kernel

Summary:	speedstep centrino support not enabled in kernel

Status:	CLOSED DUPLICATE of bug 211941

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	kernel (Show other bugs)
Sub Component:
Version:	6
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Kernel Maintainer List
QA Contact:	Brian Brock
Docs Contact:

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Depends On:
Blocks:
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Reported:	2006-11-24 13:56 EST by Stephen Hemminger
Modified:	2008-08-02 19:40 EDT (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2006-11-24 19:25:41 EST
Type:	---
Regression:	---
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Documentation:	---
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Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:

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Description Stephen Hemminger 2006-11-24 13:56:57 EST

Description of problem:
Since the cpu frequency control for Pentium-M is not enabled by default
in the FC6 kernel (CONFIG_X86_SPEEDSTEP_CENTRINO). There is no frequency
control and laptop always runs full speed.

Version-Release number of selected component (if applicable):
2.6.18-1.2849.fc6

How reproducible:
100%

Steps to Reproduce:
1. boot
2. look for cpufreq in /sys (it's missing)
3. frequency control from gnome-power-manager etc can't work

It works if I build a upstream kernel and enable it.  

Actual results:


Expected results:


Additional info:
Is this intentional or unintentional

Comment 1 Dave Jones 2006-11-24 16:48:31 EST

Hrmm.

$ grep SPEEDSTEP /boot/config-2.6.18-1.2849.fc6 
CONFIG_X86_SPEEDSTEP_CENTRINO=y

Oh, I bet I know what this is.  I bet you've been bitten by the "installer
installs a 586 kernel by default" bug.  
See http://fedoraproject.org/wiki/Bugs/FC6Common  and see if that's the problem.

If that still doesn't get you up and running, attach dmesg, and I'll poke at it
some more.

Comment 2 Stephen Hemminger 2006-11-24 19:25:41 EST


*** This bug has been marked as a duplicate of 211941 ***

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