You are not logged in.

#1 2022-01-08 07:37:49

skiars
Member
Registered: 2022-01-08
Posts: 3

CPU frequency is too low in Huawei MateBook X Pro 2021

Here is my system info:

Operating System: Arch Linux
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.2
Kernel Version: 5.15.13-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics

There are some cores that can run up to 4.2GHz when the system is idle, but at full load all core frequencies drop to about 1.2GHz. I tested it on Windows, and the full load frequency can be stable at around 2.5GHz (of course, the laptop doesn't get very hot in Linux.).

I don't know what to do, is there any way to keep the core frequency higher in ArchLinux?

Last edited by skiars (2022-01-08 07:40:05)

Offline

#2 2022-01-08 08:37:29

seth
Member
Registered: 2012-09-03
Posts: 30,813

Re: CPU frequency is too low in Huawei MateBook X Pro 2021

https://wiki.archlinux.org/title/CPU_frequency_scaling (likely performance governor) but before doing any of this see https://wiki.archlinux.org/title/Microcode

Offline

#3 2022-01-08 10:28:53

skiars
Member
Registered: 2022-01-08
Posts: 3

Re: CPU frequency is too low in Huawei MateBook X Pro 2021

I just updated the microcode and I'm using intel_pstate, but the frequency limit still seems to be there (about 1.6GHz at full load).

Offline

#4 2022-01-08 14:47:34

seth
Member
Registered: 2012-09-03
Posts: 30,813

Re: CPU frequency is too low in Huawei MateBook X Pro 2021

Do you also patch the microcode (early)?
Also check the conditions in /sys/devices/system/cpu/intel_pstate/ (notably turboboost and governor)

Offline

#5 2022-02-09 14:18:17

hchinchilla
Member
Registered: 2022-02-09
Posts: 1

Re: CPU frequency is too low in Huawei MateBook X Pro 2021

For me installing thermald unlocked full capacity of the cores

Offline

#6 2022-02-16 01:48:19

skiars
Member
Registered: 2022-01-08
Posts: 3

Re: CPU frequency is too low in Huawei MateBook X Pro 2021

hchinchilla wrote:

For me installing thermald unlocked full capacity of the cores

Thanks, this solved my problem.

In hindsight, my laptop fans wouldn't fully work at first, which was actually because the cooling system wasn't properly driven. And thermald can solve this problem. Here is what I do:

sudo pacman -S thermald
sudo systemctl enable thermald
sudo systemctl start thermald

Offline

Board footer

Powered by FluxBB