public inbox for linux-acpi@vger.kernel.org
 help / color / mirror / Atom feed
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


-------------------------------------------------------
SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf

             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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20050811234836.GA32021@srcf.ucam.org \
    --to=mjg59-1xo5oi07kqx4cg9nei1l7q@public.gmane.org \
    --cc=acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox