cpu frequency scaling on celeron laptop

cpu frequency scaling on celeron laptop

[Fabian Zeindl]

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Hi

 I have cpu frequency scaling with p4-clockmod in my kernel, and until
v2.6.15 I was possible to set governors and custom frequencies at
/sys/devices/system/cpu/cpu0/cpufreq/*.
When I changed the governor or the frequency scaling_cur_freq
represented the change.

With 2.6.16 this isn't possible anymore, I didn't change anything in the
kernel .config, just did 'make oldconfig'. There is no 'cpufreq'
subdirectory in /sys/devices/system/cpu/cpu0/ anymore.

I think this user has the same problem: http://lkml.org/lkml/2006/3/21/44

greetings
fabian zeindl

PS: Please CC me on replies, as I'm not subscribed at lkml.



-- 
What if all the world's inside of your head
Just creations of your own?
Your devils and your gods
All the living and the dead
And you're really all alone?


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Re: cpu frequency scaling on celeron laptop

[Dave Jones]

On Sun, Apr 23, 2006 at 05:48:56PM +0200, Fabian Zeindl wrote:
 > Hi
 > 
 >  I have cpu frequency scaling with p4-clockmod in my kernel, and until
 > v2.6.15 I was possible to set governors and custom frequencies at
 > /sys/devices/system/cpu/cpu0/cpufreq/*.
 > When I changed the governor or the frequency scaling_cur_freq
 > represented the change.
 > 
 > With 2.6.16 this isn't possible anymore, I didn't change anything in the
 > kernel .config, just did 'make oldconfig'. There is no 'cpufreq'
 > subdirectory in /sys/devices/system/cpu/cpu0/ anymore.

should be fixed in 2.6.16.9

		Dave

-- 
http://www.codemonkey.org.uk

Re: cpu frequency scaling on celeron laptop

[Fabian Zeindl]

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Dave Jones wrote:
> On Sun, Apr 23, 2006 at 05:48:56PM +0200, Fabian Zeindl wrote:
>  > Hi
>  > 
>  >  I have cpu frequency scaling with p4-clockmod in my kernel, and until
>  > v2.6.15 I was possible to set governors and custom frequencies at
>  > /sys/devices/system/cpu/cpu0/cpufreq/*.
>  > When I changed the governor or the frequency scaling_cur_freq
>  > represented the change.
>  > 
>  > With 2.6.16 this isn't possible anymore, I didn't change anything in the
>  > kernel .config, just did 'make oldconfig'. There is no 'cpufreq'
>  > subdirectory in /sys/devices/system/cpu/cpu0/ anymore.
> 
> should be fixed in 2.6.16.9

It works now, but I cannot set frequency from 300000 to 2500000 anymore,
just from 2187500 to 2500000.

greetings
fabian zeindl


-- 
What if all the world's inside of your head
Just creations of your own?
Your devils and your gods
All the living and the dead
And you're really all alone?


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