[Bug 222146] 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=222146

--- Comment #2 from Steffen Nurpmeso (steffen@sdaoden.eu) ---
(for your possible interest)

What do you mean by "kernel not supported"?  I use the latest LTS, just like
AlpineLinux.  And it all worked until a few versions back?

(I mean, it is not something "terrible", i just thought i report the problem,
because it is a "detoriation of state" that lasts for now several kernel
updates.)

lscpu nonetheless and in short is

Vendor ID:                   AuthenticAMD
  Model name:                AMD Ryzen 5 220 w/ Radeon 740M Graphics
    CPU family:              25
    Model:                   124
    Thread(s) per core:      1
    Core(s) per socket:      6
    Socket(s):               1
    Stepping:                0
    Microcode version:       0xa70c00a
    Frequency boost:         enabled
    CPU(s) scaling MHz:      39%
    CPU max MHz:             3201.0000
    CPU min MHz:             406.4770

CPU(s):                      12
  On-line CPU(s) list:       0-10:2
  Off-line CPU(s) list:      1-11:2


# bin/cpupower.sh
CPU 0: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 2: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 4: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 6: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 8: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 10: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
P-


(energy "should" be "power" in this state, and was until a few weeks ago.)

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