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error: '[Errno 22] Invalid argument when trying to choice powersave on DELL precision T7920 kernel version 6.17.9-1-pve #826

@karel-de-macil

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@karel-de-macil

hi,
with tuned 2.25.1 on debian 13 kernel version 6.17.9-1-pve, when i try to do a "tuned-adm profile powersave"
a "tuned-adm verify" tell me that the previous command fail
message is :
Verification failed, current system settings differ from the preset profile.
You can mostly fix this by restarting the TuneD daemon, e.g.:
systemctl restart tuned
or
service tuned restart
Sometimes (if some plugins like bootloader are used) a reboot may be required.
See TuneD log file ('/var/log/tuned/tuned.log') for details.
when i read the log file i found a lot of :
tuned.utils.commands: Writing to file '/sys/devices/system/cpu/cpu28/power/energy_perf_bias' error: '[Errno 22] Invalid argument'
and a litle later :
tuned.plugins.plugin_script: calling script '/usr/lib/tuned/profiles/powersave/script.sh' with arguments '['stop', 'full_rollback']'

full log here : https://pastebin.com/ZFjr9YVH

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