Re: [PATCH 1/1] ACPI: pci_irq, add PRT_ quirk for IBM Bartolo

From: Jiri Slaby
Date: Mon Aug 30 2010 - 03:36:16 EST


On 08/25/2010 01:25 AM, Robert Hancock wrote:
> On Tue, Aug 24, 2010 at 2:11 AM, Jiri Slaby <jirislaby@xxxxxxxxx> 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.)

Yes, there is Computer->ACPI PC.

thanks,
--
js
suse labs
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