On Thursday 29 March 2007 17:49, Miles Lane wrote: > Hmm. I've reproduced these problems with vanilla 2.6.21-rc5, so the > latest acpi-git changes are off the hook.... I think the 1st message on this thread holds the answer: > ACPI: BIOS bug: multiple APIC/MADT found, using 2 > ACPI: If "acpi_apic_instance=0" works better, notify linux-acpi@xxxxxxxxxxxxxxx Looking at your acpidump in http://bugzilla.kernel.org/show_bug.cgi?id=8283 clearly the 2nd table is broken (it is missing the SCI override) and that is why you get no ACPI interrupts. If Windows works on your machine -- ACPI events such as power button etc -- then that is proof that Windows doesn't use the 2nd MADT and I need to revert 09fe58356d148ff66901ddf639e725ca1a48a0af thanks, -Len - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html