Arch Linux

LyCC

Member

Registered: 2012-09-05

Posts: 171

Disable turbo boost on Ryzen after sleep/resume

Hi everyone,

I had turbo boost disabled for a long time now with the addition of amd_pstate=passive kernel parameter,
and a startup script that executes:

cpupower frequency-set -g ondemand

echo 0 > /sys/devices/system/cpu/cpufreq/boost

However, with the recent system update, this only works on first boot, after sleep and resume it doesn't work any more, until I restart my PC.

After resume cpupower frequency-info reports

  boost state support:
    Supported: yes
    Active: yes

whatever I try, i can not disable it.

Any help is appreciated, thank you.

LyCC

Member

Registered: 2012-09-05

Posts: 171

Re: Disable turbo boost on Ryzen after sleep/resume

I rarely need the extra speed from the boost anyway. Personally don't like the jet engine spin up and down every 5-10 seconds, prefer the quite.

I switched to the LTS kernel just now, there still work partially, it's active after sleep, but I can disable it again from terminal. This way I don't need to reboot
and set up my workspace again, and again. I can live with executing an extra command upon resume. I suspect it's some kind of bug, hopefully it will be fixed
in the near future.