Last Tuesday, I updated my firmware from 13.2.x to 13.3.0. Since then I observe a steep drop of my CPU frequency. What has caused this? Is this normal? [image]

I quickly checked with the team, and the most likely explanation is that the move to the Debian Bookworm base also changed the CPU frequency governor. On Debian Bullseye, the default governor was typically ondemand, whereas newer kernels used by Debian Bookworm generally default to schedutil. The m…

Not sure, I noticed it too. I guessed it was due to the room temperature reaching 29°C instead of 20°C. I updated Homey to v13.3.0 the day before yesterday (edit: which is last Tuesday :nerd_face::laughing: ) [Screenshot_20260625_192025_Vivaldi]

Thanks for the response. Out of curiosity : why is your CPU freq. approx 1.5GH dropping to 1.3GHz, while mine is 1.35 dropping to 0.9GHz? :thinking:

What does your CPU temperature look like? It might simply be throttling with the whole of Europe being a sauna at the moment. Might need to start looking at water-cooling the next generation Homey if climate change continues like this :thinking:

Looks normal over here. Also on v13.3.0. CPU Speed [IMG_2719] Utilization [IMG_2720] Temperature [IMG_2721]

Of course rising as well. Could be throttling, although we had peaks of high temperature before. @Doekse I checked my v13.3.0 installation date & time which where Wednesday Jun 24, 15.50hr. That is the exact moment the clock speed went down (timed around Jun 24, 16.00hr) Let’s see if it is the t…

Some have been proto-typing on bigger heatsinks with or w/o ventilation alr :nerd_face::grin: [image] [Modding] Various Homey Pro (Early 2023) Modification suggestions [IMG_2944] [image] [Modding] Various Homey Pro (Early 2023) Modification suggestions [20230430_071636] [image] [Mod…

I do see a sharp spike in CPU load and temperature at the exact moment the clock speed dropped. Have you tried rebooting it?

Rebooted 15 min. ago. Jun 25, 22.45hr. Now the graph looks like this (time scale 1 hr). Initital some spikes up to 1.5GHz, but now below 0.9GHz. Homey still functions correct, but still interesting to know and understand what’s happening. [image]

@Doekse Rebooted yesterday evening. Approx 10 hours later, I can say that rebooting hasnt changed it. The device keeps running at low frequency. [image]

Sudden CPU frequency drop from 1.3GHz to 0.9GHz since v13.3.0

Questions & Help

Peter_Kawa June 25, 2026, 7:23pm 7

Some have been proto-typing on bigger heatsinks with or w/o ventilation alr

My Homey CPU reaching 72°C now makes me wonder.

Lazy man’s fix here :

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Sudden CPU frequency drop from 1.3GHz to 0.9GHz since v13.3.0

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