Today I updated to the new stable kernel 3.10.0 (openSUSE Kernel repo for 12.3 [1]) and since then the automated CPU frequency throttling does not work any longer. It still works perfectly fine with the 3.9 kernel series from the same repository (until yesterday available there).
Now the default behaviour is, that the turbo mode of my Intel i7 3520M CPU is on, resulting in an idle frequency of 3.6 GHz.
I managed to switch off turbo mode manually by running as su
resulting in an idle frequency of 2.9GHz.
I've tried enabling the 'powersave' governor with either cpufreq-set and cpupower. Without any effect.
Is it a known bug of the 3.10. kernel or is some configuration of my system messed up? I haven't changed anything except updating my kernel from 3.9.8-1.gf3348a8-desktop to 3.10.0-1.g3dcd746-desktop this morning.
[1]: Index of /repositories/Kernel:/stable/standard
Now the default behaviour is, that the turbo mode of my Intel i7 3520M CPU is on, resulting in an idle frequency of 3.6 GHz.
I managed to switch off turbo mode manually by running as su
Code:
echo -n 1 > /sys/devices/system/cpu/intel_pstate/no_turboI've tried enabling the 'powersave' governor with either cpufreq-set and cpupower. Without any effect.
Is it a known bug of the 3.10. kernel or is some configuration of my system messed up? I haven't changed anything except updating my kernel from 3.9.8-1.gf3348a8-desktop to 3.10.0-1.g3dcd746-desktop this morning.
[1]: Index of /repositories/Kernel:/stable/standard