I am currently patching multiple kernels with a lower brightness for my Framework 16. And I noticed a strange thing:
If I build any kernel with any number of threads my CPU locks to 1000Mhz, although it could actually clock way higher. My processor is the Ryzen 7840HS, which normally clocks at ~4Ghz.
Where could I start my troubleshooting? I would like to build my kernels with the maximum frequency
EDIT:
In this screenshot you can see it’s not a problem with temperature, as the CPU sits at ~50°C. I played a game until the sharp drop of the frequency. After that it’s been only building the Kernel with 8 threads.
My guess would be that something might be limiting the power to your CPU.
I would start by looking at things like powerprofilesctl, cpupower frequency-info. Also, check if there is something in your BIOS settings related to power supply to your CPU.
Weirdly enough, after a restart, it chugs away just fine…
I’ll report back, once it happens again tho. I don’t have any BIOS settings related to CPU power. Right now the CPU uses 20-30W depending on the power plan.
If it happens again, I’ll include information about powerprofilesctl and the cpupower frequency.
I checked your link, and my system uses the AMD P-State EPP driver.
analyzing CPU 10:
driver: amd-pstate-epp
CPUs which run at the same hardware frequency: 10
CPUs which need to have their frequency coordinated by software: 10
energy performance preference: performance
hardware limits: 419 MHz - 5.14 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 1.10 GHz and 3.32 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 3.29 GHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
amd-pstate limits:
Highest Performance: 196. Maximum Frequency: 5.14 GHz.
Nominal Performance: 145. Nominal Frequency: 3.80 GHz.
Lowest Non-linear Performance: 42. Lowest Non-linear Frequency: 1.10 GHz.
Lowest Performance: 16. Lowest Frequency: 400 MHz.
Preferred Core Support: 1. Preferred Core Ranking: 232.
