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Date:	Sun, 30 May 2010 12:51:23 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	Udo van den Heuvel <udovdh@...all.nl>
CC:	linux-kernel@...r.kernel.org
Subject: Re: hpet timers gone?

On 05/30/2010 01:34 AM, Udo van den Heuvel wrote:
>
>> Have you enabled ACPI in the BIOS and kernel config? AFAIK, HPET
>> timers, need some backup timers, for HPET to be enabled.
>
> ACPI is enabled. APM is disabled.
>
> Epia LT BIOS is at 1.01 presumably. BIOS update to 1.03  fails as
> vf-1.02.exe, presumably due to freedos, does not recognise the VIA board
> and complains about it.
>
> Also due to board swap last year it can be the case that HPET has so far
> not worked at all on EPIA LT.
>
> The board has VIA C7 CPU and VIA CX700M2 Unified Digital Media IGP
> chipset which supports HPET.
>
> Can it be that the kernel lacks support for CX700 hpet?
> Or is it a matter of getting the BIOS upgrade to work?

Your current BIOS doesn't provide an HPET ACPI table, which is the way 
it's supposed to indicate support. The kernel only supports 
force-enabling HPET on VIA for VT8235 and VT8237.
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