[Bug 218689] New: AMD_Pstate_EPP Ryzen 7000 issues. Freezing and buzzing

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218689

            Bug ID: 218689
           Summary: AMD_Pstate_EPP Ryzen 7000 issues. Freezing and buzzing
           Product: Power Management
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: cpufreq
          Assignee: linux-pm@vger.kernel.org
          Reporter: kbii.chris@gmail.com
        Regression: No

Hardware:

AMD Ryzen 9 7900x
Gigabyte b650 aero g
Corsair Dominator Platinum 2x16 6000MHz

Kernel tested on:

6.8.2 Arch
6.8.1 Arch
6.6.9 Debian

Issue:

There has been a static noise coming from my cpu as well as frequent freezes.
This is nearly constant and makes the computer impossible to use for long due
to the sound.

Remedy:

I have found the issue to disappear completely while using the passive driver
provided by amd_pstate. The scaling driver must be set to schedutil. This
completely mitigates the issue.
kernel flags: amd_pstate=passive cpufreq.default_governor=schedutil

Suspicions:

I suspect the power management implementation used by amd_pstate_epp to be
causing this issue. There is a async param found inside
/sys/devices/system/cpu/power that is always set to false whenever
amd_pstate_epp is used. My intuition tells me this must be what holds up the
system at times while changing c_states or something.

Extra:

I have seen alot of talk surrounding the fTPM and issues around it but I cannot
related these two observations together, hence why I am opening a new issue. If
this is not the right way to go about it mybad, this is my first bug report.

-- 
You may reply to this email to add a comment.

You are receiving this mail because:
You are the assignee for the bug.