[Bug 218305] Ryzen 7 7840HS gets stuck at 544MHz frequency after a random number of suspend/resume cycles

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218305

--- Comment #11 from Artem S. Tashkinov (aros@gmx.com) ---
Created attachment 305659
  --> https://bugzilla.kernel.org/attachment.cgi?id=305659&action=edit
The contents of /sys/devices/system/cpu/cpufreq/*

Switching between power modes using
/sys/devices/system/cpu/cpufreq/*/energy_performance_preference does nothing.

The exact per CPU frequency stats:
# cat /sys/devices/system/cpu/cpufreq/policy*/scaling_cur_freq
400000
544395
400000
544099
400000
400000
400000
400000
400000
544189
400000
544181
400000
400000
544007
542947

No idea where 544MHz comes from.

BTW here's another bug, either firmware or something in the kernel reports
wrong max frequency:

# cat /sys/devices/system/cpu/cpufreq/policy*/scaling_max_freq
5137000
6080000
6080000
5764000
5764000
5924000
5924000
5137000
6080000
6080000
5608000
5608000
5293000
5293000
5449000
5449000

I'm not aware of any Zen 4 CPUs which can run at 6080000KHz frequency by
default, let alone mobile parts.

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