> On Tue, Aug 24, 2010 at 2:11 AM, Jiri Slaby <jirislaby@gmail.com> wrote:
>> So, to sum up:
>> 1) acpi routing enabled (no kernel parameter) => ports 4+5 defunct.
>> ports 4+5+6+7 are all on irq 11
>>
>> 2) acpi routing disabled (acpi=noirq) => all ports working, 4+5 on irq
>> 10, 6+7 on irq 11
>>
>> 3) with the quirk [1] and acpi routing enabled => all ports working,
>> ports 4+5 on irq 10, 6+7 on irq 11
>>
>> 4) in windows => 4+5+6+7 are all on irq 9 and the ports are all working.
>>
>> Any ideas what this means? Especially point 4)?
>>
>> [1]
http://lkml.org/lkml/2010/6/27/85
>
> I think that's the key question. Is Windows actually using ACPI on
> that machine at all? (Check the computer type in Device Manager and
> see if it mentions ACPI.)