Kernel 6.11 amd pstate

[Grouack]

hi every one,

I have seen that Proxmox provide a kernel 6.11 and I wanted to give it a try for the and pstate.
I have a threadripper 3970x and pstate active should be working normally since 6.9 I think.

In the journal I see some error telling me that some frequency are not set:

Nov 27 19:07:06 eternium kernel: amd_pstate: min_freq(0) or max_freq(0) or nominal_freq(0) value is incorrect
Nov 27 19:07:06 eternium kernel: amd_pstate: failed to register with return -19

when I try theses commands:

echo "=============nominal freq==============================="
cat /sys/devices/system/cpu/cpu0/acpi_cppc/nominal_freq

echo "=============norminal perf==============================="
cat /sys/devices/system/cpu/cpu0/acpi_cppc/nominal_perf

echo "=============highest_perf perf==============================="
cat /sys/devices/system/cpu/cpu0/acpi_cppc/highest_perf

echo "=============lowest_nonlinear_perf perf==============================="
cat /sys/devices/system/cpu/cpu0/acpi_cppc/lowest_nonlinear_perf

echo "=============lowest perf==============================="
cat /sys/devices/system/cpu/cpu0/acpi_cppc/lowest_perf

Get this result:

=============nominal freq===============================
0
=============norminal perf===============================
135
=============highest_perf perf===============================
166
=============lowest_nonlinear_perf perf===============================
81
=============lowest perf===============================
21

on grub configuration I have add amd_pstate=active
on the bios I have activate the 2 options for pstate and let global c state in auto

because of the error in the journal I'm still with acpi-cpufreq at boot

Does anyone have arrive to make it work?