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Bug#603487: linux-image-2.6.32-5-amd64: CPU runs on lowest frequency only, does not increase anymore on demand (as it used to do before)



On Sun, 2010-11-14 at 18:30 +0100, fbugs wrote:
[...]
> #cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
> 1199000
> #echo 2530000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
> #cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
> 1199000
> 
> #cpufreq-info | grep "hardware limits\|current policy"
>   hardware limits: 1.20 GHz - 2.53 GHz
>   current policy: frequency should be within 1.20 GHz and 1.20 GHz.

OK.  I can't find any change that would explain this.  Please submit a
bug upstream at <https://bugzilla.kernel.org> under product 'ACPI',
component 'Power-Processor', and include:

- The precise model of computer and processor.
- The last version that worked, i.e. Debian's version 2.6.32-9.  You can
specify that this is close to stable version 2.6.32.9.
- The information from cpufreq-info and the result of writing to
scaling_max_freq.

Let us know the bug number or URL so we can track it.

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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