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Date:      Fri, 10 May 2013 13:03:45 +0200
From:      Eduardo Morras <emorrasg@yahoo.es>
To:        freebsd-questions@freebsd.org
Subject:   Re: with ACPI=on, 9.1-RELEASE shutdown automatically
Message-ID:  <20130510130345.308c412ab657028ec3531ab2@yahoo.es>
In-Reply-To: <CALe6D=ti6Ro-cJYN+kkAE8JtLijeE90DLxPqhoN_Jv0+O2gKhQ@mail.gmail.com>
References:  <CALe6D=ti6Ro-cJYN+kkAE8JtLijeE90DLxPqhoN_Jv0+O2gKhQ@mail.gmail.com>

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On Fri, 10 May 2013 12:34:14 +0200
Xavier <xavierfreebsdquestions@gmail.com> wrote:

> Hi to all,
> 
> About this email subject, on acer Aspire 5634WLMi machine and
> 9.1-RELEASE OS, FreeBSD shutdown the machine automatically in few
> minuts.

In freebsd-es a similar problem was reported some months ago. The cause is fan switch off after startup menu and rising temperature. It looks like ec controller problem (Acer doesn't provide documentation about Embedded Controller, all is done by try and error and can damage the laptop)

> How can I debug the reason of the problem ?

A not so good wokaround is down the temperature where cpu Hz is adjusted:

#sysctl hw.acpi.thermal.user_override=1
#sysctl hw.acpi.thermal.tz0._PSV=65C
#sysctl hw.acpi.thermal.user_override=0

Or downgrade to 8.x


> 
> Thanks, see you !
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---   ---
Eduardo Morras <emorrasg@yahoo.es>



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