[Bug 218689] AMD_Pstate_EPP Ryzen 7000 issues. Freezing and static sound

[bugzilla-daemon@kernel.org]

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

--- Comment #2 from Christopher Bii (kbii.chris@gmail.com) ---
(In reply to Artem S. Tashkinov from comment #1)
> This is extremely unlikely to be caused by the CPU driver.
> 
> Please try resetting your BIOS settings and not using any XMP memory
> profiles first.

Few things I have done:

- Reset bios to defaults
- Updated Bios
- Downgraded bios
- Disable xmp profile
- Set/unset typical idle usage
- Tweaked nearly every setting in the bios over 2 weeks
- Replaced motherboard
- Replaced ram

Kernel params passed:

no_rcucbs=0-$numcores
idle=nomwait
iommu=soft
acpi=off

Absolutely nothing worked.

I had tried testing around different governors but had never tried using the
passive amd_pstate mode. The one thing that caught my attention was the
asynchronous power management parameter being off. This to me seems like the
most plausible cause of the stuttering.

The one thing I am absolutely certain of though, change the cpufreq driver and
governor 100% makes a difference. Exact cause needs to be further investigated.

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