Re: CPU frequency scaling on AMD64 laptop
Some of the amd64 laptops require that you use ACPI to detect the available
frequency states. Does your kernel have the options
CONFIG_X86_POWERNOW_K8
CONFIG_X86_POWERNOW_K8_ACPI
set? If not, try setting those and see if it helps.
Good luck!
-Ted
On Sunday 13 February 2005 09:34, Lukáš Oliva wrote:
> Hi,
> I have a AMD64 Acer notebook and I can not make the cpufreq, powernowd
> or cpudyn make working. The problem is that it seems not to have a
> correct cpufreq interface. I tried to load modules acpi-cpufreq, but it
> returns me thet deviceš does not exist. I tried to recompile the last
> kernel (2.6.11-rc3), because I read somewhere, that problem is in
> kernel, but no success.
>
> As I read on AMD pages, the processor should support CPU frequency
> scaling. Did anyone succeed in running it or it is just my problem? I
> also tried to search my notebook on linux-compatibility, but the problem
> of ACPI and cpufreq was not closely described here, although the
> notebook was there considered to be nearly all right.
>
> I am running Debian Sarge sid on it and it is Acer Aspire 1524. I would
> be grateful for any comment.
>
> Lukas
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