Doug Henderson wrote: > The 1637 shows this message in dmesg: > ACPI: BIOS age (2000) fails cutoff (2001), acpi=force is required to > enable ACPI > > The later kernels, including 1654, do not show this message. > They appears to enable ACPI in both SMP and non-SMP versions. ISTR that the ACPI cut-off date has now been dropped ...