Hi guys, I installed Proxmox on a Beelink SER5 mini PC with a Ryzen 5560U. When tested on Windows 11, it correctly activates the C6 states for power saving. Since it will be used for very light VMs (Home Assistant and little else), I’d like to minimize idle power consumption. However, I noticed that on Proxmox, it only activates up to C3 at most. Do you have any idea how to fix this? I’m not very experienced—I even tried asking ChatGPT for help, but without success. Thanks a lot!
Proxmox C6 states not working
- Thread starter redstyle82
- Start date
root@proxmox:~# powertop --auto-tunemodprobe cpufreq_stats failedCannot load from file /var/cache/powertop/saved_results.powertopCannot load from file /var/cache/powertop/saved_parameters.powertopFile will be loaded after taking minimum number of measurement(s) with battery only RAPL device for cpu 0RAPL Using PowerCap Sysfs : Domain Mask 5RAPL device for cpu 0RAPL Using PowerCap Sysfs : Domain Mask 5Devfreq not enabledglob returned GLOB_ABORTEDCannot load from file /var/cache/powertop/saved_parameters.powertopFile will be loaded after taking minimum number of measurement(s) with battery only Leaving PowerTOP
root@proxmox:~# grep . /sys/devices/system/cpu/cpu0/cpuidle/state*/name
/sys/devices/system/cpu/cpu0/cpuidle/state0/name
OLL/sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1
/sys/devices/system/cpu/cpu0/cpuidle/state2/name:C2
/sys/devices/system/cpu/cpu0/cpuidle/state3/name:C3
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Please don't unneccessarily quote me and use code blocks. I meant
I think AMD CPUs only (show) going down to C3 is normal on linux with the common tools. You can also use
powertop itself. Open it and go to Idle stats with the TAB key.I think AMD CPUs only (show) going down to C3 is normal on linux with the common tools. You can also use
turbostat from the linux-cpupower package to monitor them.
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