Date: Sun, 29 Mar 2009 15:38:29 +0100 From: Chris Whitehouse <cwhiteh@onetel.com> Cc: freebsd-acpi@freebsd.org Subject: Re: acpi_tz0: _CRT value is absurd, ignored (256.0C) (was pr kern/105537) FIX? Message-ID: <49CF87E5.5020107@onetel.com> In-Reply-To: <49C93309.6050708@iki.fi> References: <49C80E65.9090500@onetel.com> <49C93309.6050708@iki.fi>
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Pasi Parviainen wrote: > Chris Whitehouse wrote: >> Hi, I sent this a while ago but don't think there was a reply. I'm >> about to embark on a custom ASL to load in loader.conf as per >> http://www.freebsd.org/doc/en/books/handbook/acpi-debug.html but just >> wondering if their might be a 'proper' fix on the way. I do have the >> latest bios installed. > > Loading custom ASL with modified _CRT value for temperature zone in > question will solve the problem, see below for more information. > --- /nc6320.asl 2009-03-28 21:21:25.000000000 +0000 +++ /nc6320.TZ0._CRT.95C.asl 2009-03-29 16:16:16.000000000 +0100 @@ -146,7 +146,7 @@ * Intel ACPI Component Architecture * AML Disassembler version 20070320 * - * Disassembly of /tmp/acpidump.RLCPmU, Sat Mar 28 21:21:25 2009 + * Disassembly of /tmp/acpidump.nryPEu, Sat Mar 28 18:02:15 2009 * * * Original Table Header: @@ -12940,7 +12940,7 @@ Method (_CRT, 0, Serialized) { - Return (C316 (0x04, 0x00)) + Return (C316 (0x00, 0x02)) } Method (_TMP, 0, Serialized) These values set hw.acpi.thermal.tz0._CRT to 95.0C. I tested various values which gave different _CRT temps, some of which were below hw.acpi.thermal.tz0.temperature. The messages have stopped and I now know that the machine will shut down if the temperature is exceeded. Thanks everybody for suggestions and pointers. Chris
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