linux-kernel - RE: x86-64 with nvidia MCP51 chipset: kernel does not find HPET

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Message-ID: <1449F58C868D8D4E9C72945771150BDF153774@SAUSEXMB1.amd.com>
Date:	Mon, 30 Oct 2006 11:07:54 -0600
From:	"Langsdorf, Mark" <mark.langsdorf@....com>
To:	"Lee Revell" <rlrevell@...-job.com>,
	"linux-kernel" <linux-kernel@...r.kernel.org>
cc:	"Clemens Ladisch" <clemens@...isch.de>
Subject: RE: x86-64 with nvidia MCP51 chipset: kernel does not find HPET

> I have a 6 month old x86-64 machine with nvidia MCP51 chipset on which
> the kernel does not detect the HPET.  According to HPET maintainer
> Clemens Ladisch, this machine certainly has one, but it cannot be
> enabled for lack of hardware documentation.
> 
> Is there anything I can do to help debug this?

If the hardware is not providing the HPET description in ACPI,
there's little you can do, and most vendors do not provide
the HPET description.

Do you know if there's an entry for HPET in the ACPI?

-Mark Langsdorf
AMD, Inc.


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