[Bug 221505] REGRESSION][amd_pstate] "EPP cannot be set under performance policy" (EBUSY) when switching to performance profile via PPD on 7.1

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221505

Rhys Edwards (rhys.r.edwards@gmail.com) changed:

           What    |Removed                     |Added
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                 CC|                            |rhys.r.edwards@gmail.com

--- Comment #27 from Rhys Edwards (rhys.r.edwards@gmail.com) ---
Just updated to 7.1-rc5 as part of usual CachyOS update, can confirm issue is
not fixed still exactly the same as before, pretty sure it started at rc1 or
rc2 but unsure. If i swap back to the 7.0 kernel using the kernel manager
performance mode works fine again, if i set my mode to performance in 7.0 and
then boot back to 7.1-rc i get that same weird half broken frequency limiting
thing where it won't go past 3.0Ghz until i go back to balanced, but then get
the communication GDBus error trying to go back to performance again.

❯ cat /sys/devices/system/cpu/amd_pstate/status
active
~
❯ cat /sys/devices/system/cpu/amd_pstate/dynamic_epp
disabled
~
❯ cat /sys/devices/system/cpu/amd_pstate/prefcore
enabled

This is a pretty standard desktop computer, no battery involved and nothing
ASUS. Specs were listed in previous message. If there is anything else i can
run to provide details let me know.

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