[Bug 253288] hwpstate_intel: Wedges under any kind of load on ThinkPad Carbon X1 Gen 8

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253288

--- Comment #29 from rkoberman at gmail.com ---
(In reply to Ulrich Spörlein from comment #28)
The commit is the one that enables P-States and it seems to work fine on all
but Lenovo ThinkPads. All that can be done until someone with a lot more ACPI
and kernel knowledge that I figures it out. Until then, the ony "solution" is
to disable P-State support by adding hint.hwpstate_intel.0.disabled=1 to
/boot/loader.conf. Since P-State support was not present before 13.0, it leaves
you no worse off than you were on older versions of FreeBSD.

Reverting the commit would simply turn off P-State support for everyone and it
is a valuable power management capablity.

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