$lsmod | grep speedstep_centrino speedstep_centrino 9920 0 freq_table 5792 3 speedstep_centrino,cpufreq_stats,cpufreq_ondemand
$ lsmod | grep acpi_freq gives no answer So the answer is speedstep_centrino Do you have a solution ? -- [feisty] CPU scaling ondemand stay at 100% https://launchpad.net/bugs/99059 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs