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