There is a 3rd acpi kernel parameter :
kernel /boot/vmlinuz root=/dev/sda1 acpi_enforce_resources=lax
I needed that to be able to load the it87.ko temperature driver on one older P4 Board from 2001 or 2003.
https://www.kernel.org/doc/Documentation/kernel-parameters.txt wrote:acpi_enforce_resources= [ACPI]
{ strict | lax | no }
Check for resource conflicts between native drivers
and ACPI OperationRegions (SystemIO and SystemMemory
only). IO ports and memory declared in ACPI might be
used by the ACPI subsystem in arbitrary AML code and
can interfere with legacy drivers.
strict (default): access to resources claimed by ACPI
is denied; legacy drivers trying to access reserved
resources will fail to bind to device using them.
lax: access to resources claimed by ACPI is allowed;
legacy drivers trying to access reserved resources
will bind successfully but a warning message is logged.
no: ACPI OperationRegions are not marked as reserved,
no further checks are performed.