[Bug 832179] Power management guide is wrong for frequency scaling in Fedora 17

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=832179

Jack Reed <jreed at redhat.com> changed:

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--- Comment #1 from Jack Reed <jreed at redhat.com> ---
Thanks for reporting these issues, Jim. I'll address them individually, and
have asked Jaroslav Skarvada for his advice on a couple of them.

(In reply to comment #0)
> the location of the cpufreq directory is misspecified
> it is
> /lib/modules/3.4.0-1.fc17.x86_64/kernel/drivers/cpufreq

No problem, I've fixed this up.

> 
> There are no modules
> acpi-cpufreq or p4-clockmod available
> is acpi-cpufreq directly compiled in.

Jaroslav, how are these drivers acquired? I don't have them listed in my
/lib/modules/KERNEL/kernel/drivers/cpufreq directory either. (They are
mentioned in the Important admonition in [1].)


> the cpuspeed package is mentioned for the userspace governor but no package
> exists in fedora 17.

Jaroslav, the F16 Alpha release notes [2] say that cpuspeed has been rendered
obsolete. The Power Management Guide mentions that the userspace governor is
"normally used in conjunction with the cpuspeed daemon". Is whatever has
replaced cpuspeed still used in conjunction with the userspace governor? Or can
I just remove this point entirely?

> 
> I have been completely unable to figure out the following use case.
> 
> My laptop overheats and powers off if the cpu load is high for too long.
> 
> There should be a cpu governor or userspace daemon that reduces frequency
> when the temperature gets too high.

Jim, it would be best to submit a new bug against the cpupowerutils component
as a request for enhancement.


[1]
http://docs.fedoraproject.org/en-US/Fedora/17/html/Power_Management_Guide/cpufreq_setup.html
[2]
https://fedoraproject.org/wiki/Fedora_16_Alpha_release_notes#What.27s_New_in_Fedora_16_Alpha

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