Thank you guys!
> Note that CPU was *not* throttled while I took this dump, it was running
> normally.
This is not a problem, it does not contain any running state, it would
return the same.
> The previous one (worked perfectly): 01.10.00 Rev.A, dated Aug 18,
2025
If you ever revert to the old BIOS version, please send us an acpidump
so we can get closer to a solution.
What I noticed is that they are implementing both AMD and Microsoft's
LPS0 DSM.
The code would be prepared to use only one of them, but I think a bug
was added with a change that makes it use both. And maybe the laptop
isn't prepared for this.
/drivers/acpi/x86/s2idle.c:462:
} else if (lps0_dsm_func_mask_microsoft > 0 && rev_id) {
lps0_dsm_func_mask_microsoft = -EINVAL;
acpi_handle_debug(adev->handle, "_DSM Using AMD method\n");
}
but the rev_id is always 0 here, so both lps0_dsm_func_mask,
lps0_dsm_func_mask_microsoft will be active.
Would removing " && rev_id" from the if solve the problem?
Mario what do you think?
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https://bugs.launchpad.net/bugs/2088733
Title:
low CPU frequency after wake up AMD Ryzen
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