[Bug 52852] Re: MacBook gets extremely hot under Linux

[Tux]

I notice the same behavior with the standard kernel from feisty and a gutsy 2.6.22 kernel from git with mactel patches applied. I have a Macbook Pro with a C2D processor.
The acpi-cpufreq module seems to work. It sets the correct values for the MSRs and a lower frequency is displayed. But if you use measurefreq from linux-phc you see that speedstepping doesn't work at all and the CPU works at 2.16 GHz (in my case) the whole time. speedstep-centrino doesn't work at all

FATAL: Error inserting speedstep_centrino
(/lib/modules/2.6.22-8-generic/kernel/arch/i386/kernel/cpu/cpufreq
/speedstep-centrino.ko): No such device

** Attachment added: "cpuinfo"
   http://launchpadlibrarian.net/9000967/cpuinfo

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MacBook gets extremely hot under Linux
https://bugs.launchpad.net/bugs/52852
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