newbie question - how to read temerature

[Isaac Mushinsky]

Thanks for all the advice (no solution in sight though). By the way, this is not a laptop; it's a desktop workstation.

-----Original Message-----
From: Nate Lawson <nate at root.org>
To: Bruno Ducrot <ducrot at poupinou.org>
Date: Thu, 27 Jan 2005 12:36:08 -0800
Subject: Re: newbie question - how to read temerature

> 
> Bruno Ducrot wrote:
> > On Mon, Jan 24, 2005 at 11:25:20PM -0500, Isaac Mushinsky wrote:
> > 
> >>I have Dell Precision 530 2x1.7 gHz Xeon. Trying to replace the Dell's noisy 
> >>fans I wanted to make sure the CPU temperatures are normal. But I can find no 
> >>way to read the temperatures at all. ASL dumped with acpidump does not 
> >>compile.
> >>
> >>So as not to run too much text in the mail, here are the outputs:
> >>
> >>(compiled with ACPI_DEBUG)
> >>
> >>dmesg: http://omsk.mushinsky.net/acpi/dmesg
> >>acpidump -t -d: http://omsk.mushinsky.net/acpi/asl
> >>iasl errors: http://omsk.mushinsky.net/acpi/iasl
> >>
> >>finally, 
> >>$ sysctl -a hw.acpi
> >>hw.acpi.supported_sleep_state: S1 S3 S4 S5
> >>hw.acpi.power_button_state: S5
> >>hw.acpi.sleep_button_state: S1
> >>hw.acpi.lid_switch_state: NONE
> >>hw.acpi.standby_state: S1
> >>hw.acpi.suspend_state: S3
> >>hw.acpi.sleep_delay: 1
> >>hw.acpi.s4bios: 0
> >>hw.acpi.verbose: 0
> >>hw.acpi.reset_video: 1
> >>hw.acpi.cpu.cx_supported: C1/0
> >>hw.acpi.cpu.cx_lowest: C1
> >>hw.acpi.cpu.cx_usage: 100.00%
> >>
> > 
> > 
> > There is no thermal zone in this ASL.  So no hope to get it via ACPI.
> > But, IIRC, there is a support under Linux, but for i8k models, which use
> > a propritary, non documented BIOS interface from Dell.  I think this is
> > the case with the Precision.
> 
> Yes, Dell chose not to export thermal info through ACPI for this laptop. 
>   Mark Santrcoos (marks@) wrote a Dell SMM driver that probably 
> duplicates the Linux driver Bruno mentions.  Perhaps he can post it for 
> you to try.
> 
> -- 
> Nate
>