CPU frequency scaling on AMD64 laptop

[Lukáš Oliva <xoliva02@stud.feec.vutbr.cz>]

  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