linux-kernel - Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns

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Message-ID: <28333.1176059397@turing-police.cc.vt.edu>
Date:	Sun, 08 Apr 2007 15:09:57 -0400
From:	Valdis.Kletnieks@...edu
To:	Rene Rebe <rene@...ctcode.de>
Cc:	Kyle Moffett <mrmacman_g4@....com>,
	Jeremy Fitzhardinge <jeremy@...p.org>, Andi Kleen <ak@...e.de>,
	"Brown, Len" <len.brown@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns

On Mon, 02 Apr 2007 10:35:40 +0200, Rene Rebe said:

(Sorry for the late reply..)

> IIRC a MSI Megabook S270 (I formerly owned) BIOS notifies this
> "Critical temperature reached (128C)" when the battery run empty
> when the OS did no action due to battery low indications. I guess
> the BIOS people thought this is a good last resort to let the OS
> really shutdown before the box just turns off.

It's not just MSI - I recently managed to put a Dell Latitude D820 into its bag
while still running, where it babbled to itself running on the warm side for
several hours.  When I finally did get it out, it *was* quite hot to the touch,
but I was amazed that it managed to run the battery down to somewhere under 4%
(which took some 4 or 5 hours) and then throw the thermal check that made it
shut down - quite the coincidence indeed.

However, "ran warm but tolerable and then used the thermal to shut down when
the battery failed" matches the symptoms much better....

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