[Bug 218305] Ryzen 7 7840HS gets stuck at 544MHz frequency after resuming after unplugging the power cord during sleep

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218305

--- Comment #113 from Márcio (marciosr10@gmail.com) ---
(In reply to Mario Limonciello (AMD) from comment #112)
> That's quite an interesting result.  Let me ask this - how quickly are you
> unplugging / plugging in the adapter?  

More than 10 seconds

Particularly after you've closed the
> lid but before unplugging the adapter.

More than 10 seconds, just because this is the use case where I first saw this
problem. I close the lid, unplug the adapter, put everything in my bag, go to
another place, plug the adapter back in, and then open the lid.

> Without the revert if you follow this (specific) timing does it still happen?
> 
> 1) Close lid
> 2) Wait 10 seconds
> 3) Unplug adapter
> 4) Wait 10 seconds
> 5) Plug in adapter
> 6) Wait 10 seconds
> 7) Open laptop, check frequency

The frequency problem occurs:

- 544 MHz in power save mode, with some spikes to 1101 MHz;
- 1101 MHz in performance and balanced profiles, with some cores occasionally
dropping to 544 MHz.

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