Problems with throttling on P4M notebook

Hi!

I have an Acer TravelMate 630 with a 1.40GHz P4m. My problem is, that throttling does not seem to work.

If I pass "7" to /proc/acpi/proces.../throttling the CPU temparature doesn't go down faster than usual. The throttling-state is accepted (since "cat throttling" showes a "*" in front of T7) but without any effect.

I have to use the "acpi-cpufreq"-driver since "speedstep-smi" does not work for me. My distro is "Gentoo Linux" running with kernel 2.6.15-rc2. Additional infos about my notebook can be found here:
http://www.fagotten.org/daniele/acer-tm630/

Thanks in advance,
Patrick

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