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From: Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: NX6125 has insane thermal trip values
Date: Fri, 12 Aug 2005 00:48:36 +0100	[thread overview]
Message-ID: <20050811234836.GA32021@srcf.ucam.org> (raw)

Booting a 64-bit kernel on an HP nx6125, the thermal trip values are set 
to 16 degrees centigrate by default. This seems to be due to the 
following block of code:

            If (LAnd (LEqual (\_SB.C031, 0x01), LAnd (LEqual (Arg0, 
0x00), LEqu\al (Arg1, 0x00))))
            {
                If (\_SB.C046.C0AD.C110.C164 ())
                {
                    Store (0x0B4B, Local2)
                }
            }

            If (LEqual (\_SB.C046.C054.C055, 0x01))
            {
                Store (0x0B4B, Local2)
            }

            Return (Local2)

which appears to explicitly set those temperatures. I'm assuming that 
this is only supposed to be triggered under a certain set of conditions, 
but HP's insistence on replacing all of their object names with crap 
makes me weep bitter tears of loathing and I really can't be bothered 
tracking this down. I've attached the DSDT - can anyone see any obvious 
reason why this code path should be triggered? I'll get in touch with HP 
anyway, and see if they can fix it in a newer BIOS revision.

-- 
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org


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             reply	other threads:[~2005-08-11 23:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-11 23:48 Matthew Garrett [this message]
     [not found] ` <20050811234836.GA32021-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2005-08-12  7:32   ` NX6125 has insane thermal trip values Thomas Renninger
     [not found]     ` <42FC50A7.5090404-l3A5Bk7waGM@public.gmane.org>
2005-08-12  9:13       ` Matthew Garrett

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