Re: [PATCH] x86: Disable HPET MSI on ATI SB700/SB800

From: Mark Hounschell
Date: Thu Jan 28 2010 - 04:17:45 EST


On 01/25/2010 12:10 PM, Andreas Herrmann wrote:
> On Fri, Jan 22, 2010 at 11:21:06PM -0800, Yuhong Bao wrote:
>>
>>> HPET MSI on platforms with ATI SB700/SB800 as they seem to have some
>>> side-effects on floppy DMA. Do not use HPET MSI on such platforms.
>
> Argh, will see what information I can find about this problem ...
>
>> I think somebody from AMD should review the situation.Clearly
> something is happening inside their southbridge.CCing Andreas
> Herrmann from AMD.
>
> I have the feeling that this problem should rather be fixed with a DMI
> quirk instead of disabling HPET MSI for the entire chipset.
>
> Was the latest available BIOS installed on the affected system?
>

You mean "systems" of different manufactures? I will check today. Due to
mis configured filters I didn't see this until today. Sorry.

Mark
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