On 05/06/2011 02:47 PM, Dietmar Maurer wrote: > Maybe you need to install acpid? It was installed and on statup ... but I found the root cause. The acpi module is not loading as it doesn't load acpi_cpufreq. The cause is the following: # cat /proc/acpi/processor/CPU0/throttling <not supported> Cheers, Gippa