[SOLVED] Powertop issues

thesupertechie · 2026-05-14 05:17:25

I'm having a recent issue with powertop. Every time I launch the program, it prints this for a split second:

modprobe cpufreq_stats failed

As a result, all of the stats get replaced with this:

Summary: -nan wakeups/second,  -nan GPU ops/seconds, -nan VFS ops/sec and -0.0% CPU use

Also, it seems that because of this, the program fails to take any measurements. I left it running on battery for minutes and it still has zero measurements.

I tried installing linux-headers, but that's already installed.

I tried to modprobe myself, but that just results in this:

modprobe: FATAL: Module cpufreq_stats not found in directory /lib/modules/7.0.5-arch1-1

Any pointers would be appreciated. I'm clearly overlooking something simple here.

Last edited by thesupertechie (2026-05-15 02:38:42)

dimich · 2026-05-14 07:29:38

thesupertechie wrote:

modprobe cpufreq_stats failed

That's ok. Powertop mistakenly assumes cpufreq_status is a module but in Arch kernel it is linked statically.

thesupertechie wrote:

As a result, all of the stats get replaced with this

It's not because of modprobe failure. Powertop-2.15 released 3.5 years ago and probably not in sync with modern sysfs layout for some CPU drivers. Try powertop-git.

Last edited by dimich (2026-05-14 07:29:57)

thesupertechie · 2026-05-15 02:38:26

The error still appears, but the missing stats now appear and it can take measurements. Thanks!

Arch Linux

#1 2026-05-14 05:17:25

[SOLVED] Powertop issues

#2 2026-05-14 07:29:38

Re: [SOLVED] Powertop issues

#3 2026-05-15 02:38:26

Re: [SOLVED] Powertop issues

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