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Amorphis
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Joined: 16 Jul 2002
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PostPosted: Wed Jul 17, 2002 11:39 am    Post subject: Cpufreq and P4 M Reply with quote

Anyone tried setting the CPU frequency using cpufreq in a P4 Mobile? I read somewhere that cpufreq P4 support wasn't ready yet but found a patch for it here:

http://function.linuxpower.ca/patches/patch-cpufreq-p4-1

Will try to use it as soon as i get home.
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Hypnos
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Joined: 18 Jul 2002
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PostPosted: Thu Jul 25, 2002 9:09 pm    Post subject: Re: Cpufreq and P4 M Reply with quote

Amorphis wrote:
Anyone tried setting the CPU frequency using cpufreq in a P4 Mobile? I read somewhere that cpufreq P4 support wasn't ready yet but found a patch for it here:

http://function.linuxpower.ca/patches/patch-cpufreq-p4-1

Will try to use it as soon as i get home.


How did this work out for you? I'm considering using the same patch ...
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dc
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Joined: 29 Jul 2002
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PostPosted: Mon Jul 29, 2002 3:51 pm    Post subject: Reply with quote

I know of two ways to set the CPU frequency on mobile processors at runtime: the kernelpatches ( have a look at http://www.brodo.de/cpufreq/index.html ) and Marc Lehmann's userspace tool ( http://www.goof.com/pcg/marc/speedstep.html ).
Both don't work for me, but looking at the source i noticed that they seem only to work on 82801CA and 82801BA chipsets. An "lspci" should tell you if you have such a chipset.

Viel Spass am Geraet!

Dennis
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