linux-kernel - Re: ACPI OSI disaster on latest HP laptops

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Message-ID: <20080813192247.GF6995@ucw.cz>
Date:	Wed, 13 Aug 2008 21:22:48 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Len Brown <lenb@...nel.org>
Cc:	Thomas Renninger <trenn@...e.de>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	linux-acpi <linux-acpi@...r.kernel.org>,
	"Moore, Robert" <robert.moore@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...ux.intel.com>,
	Christian Kornacker <ckornacker@...e.de>
Subject: Re: ACPI OSI disaster on latest HP laptops - critical temperature shutdowns

Hi!

> I ACK Thomas' suggestion to check for <= 0C for HOT,
> PSV and ACx trip points.  While we don't have such a

Hmm, I don't think that's good idea. 0Celsius is not special value.

While having _CRT below 25Celsius would be quite strange (machine
that can not run on room temperature?), I could imagine it (cryogenic
cooling, cpu is overclocked, needs -10C to work).

Machine with AC0 == -10C is very easy to imagine, OTOH. It is normal
notebook that needs fans during normal temperatures, but does not need
it if it is really cold.

							Pavel

-- 
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