userspace governor in debian 4.9

[kmahmou1]

Hi,

I have a debian " Debian 4.9.51-1".
In /sys/devices/system/cpu/cpu1/cpufreq/scaling_available_governor , I can only see : performance and powersave.
How can I enable the userspace governor ?

I tried to add "intel_pstate=disable" to GRUB config but it's still not working.
Does Debian 4.9.51-1 support it ?

Thanks

[bw123]

A nice package called cpufrequtils helped me with a similar issue.

[kmahmou1]

Hi,

That article is very useful and covers almost everything.
According to what I understood, in order to enable all governors, intel_pstate has to be set to passive.
I did this, rebooted and it did not work .

However, I really think the CPU supports setting a specific frequency, but the driver seems not to allow that.
Inspecting the values of scaling_cur_freq, I can clearly see different values in there every time I "vim".

My CPU is : Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz.
Any additional ideas ?

[kmahmou1]

Putting intel_pstate=disable in the /etc/default/grub is enough.
However, you should run "update-grub" to reflect that in the grub configuration file.

[Segfault]

Why not use the more advanced P states driver? It won't be loaded if your CPU does not support it. Why userspace?