Arch Linux

MountainX

Member

Registered: 2016-02-08

Posts: 371

systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate'

I just ran a full update and after rebooting I am seeing this message in the journal:

systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate': No such device

I see one older thread on this topic without a solution posted:
https://bbs.archlinux.org/viewtopic.php?id=233911

Last edited by MountainX (2020-11-14 04:19:46)

noreset

Member

Registered: 2018-09-19

Posts: 53

Re: systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate'

I've the same message reported in the journal, in my case it appeared after installing two Gnome's extensions, to be specific they are 'Vitals' and 'Freon', both used to check on some system parameters like temperature, cpu load, memory usage etc. I'd assume that probably one of these programs is trying to retrieve information that are not available for some specific hardware configuration, though, I repeat myself, it is just an assumption.

othersamo_

Member

From: Braislava

Registered: 2020-10-26

Posts: 161

Re: systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate'

Yes, Same problem here and no solution found yet.

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Sanras

Member

Registered: 2021-02-01

Posts: 10

Re: systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate'

Same issue here, this error occasionally shows up in my logs. Dell Inspiron 5593 with i5-1035G1.

drewlong

Member

Registered: 2013-01-23

Posts: 1

Re: systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate'

I found a thread over on a manjaro forum
https://forum.manjaro.org/t/pcc-cpufreq … rror/14172

following the links it would appear appending  intel_pstate=active  to the kernel line solves the problem.

Last edited by drewlong (2021-06-03 13:29:47)

LucasBiazi

Member

Registered: 2020-11-11

Posts: 111

Re: systemd-udevd: could not read from '/sys/module/pcc_cpufreq/initstate'

I found a thread over on a manjaro forum
https://forum.manjaro.org/t/pcc-cpufreq … rror/14172

following the links it would appear appending  intel_pstate=active  to the kernel line solves the problem.

After today's update I was receiving this message in my journalctl:

Thermal DTS or hwmon: No Zones present Need to configure manually

After restarting the service I experienced this very message you're talking about. Adding the parameter above seems to have fixed the issue.

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