[Bug 204807] Hardware monitoring sensor nct6798d doesn't work unless acpi_enforce_resources=lax is enabled

bugzilla-daemon
2021-04-15T09:27:54Z

--- Comment #67 from Artem S. Tashkinov (aros@gmx.com) ---
(In reply to Hans de Goede from comment #64)
>
> Matthew rightly advises against using "acpi_enforce_resources=lax" because
> that opens races between the firmware and Linux which could result in
> writing to another superIO register then intended. This can definitely lead
> to e.g. stopping the fans even though the CPU is running hot, which is not
> good but all modern CPUs have builtin overtemp protection, so at the worst
> the system will simply shutdown (1).
>

Multiple users use acpi_enforce_resources=lax and I haven't seen a single
report that it's ever broken anything.

AFAIK no one has used this hack to control fans using PWM, so that might indeed
lead to unintended consequences.