[ltp] Re: RE: [ltp] lm-sensors

[Niel Lambrechts]

>From http://acpi.sourceforge.net/dsdt/index.php:

DSDT is an acronym for Differentiated System Description Table. This
table contains the Differentiated Definition Block, which supplies the
information and configuration information about the base system. It is
always inserted into the ACPI Namespace by the OS at boot time.
Unfortunately, many hardware vendors and OEMs are not capable of
supplying fully functional tables (not even the members of the ACPI
SIG), see also the blacklist. So there is a need to patch these tables
by us. :)

It doesn't matter if the R40 or R50 differs in other ways, you should
still inspect this if you want low level power management functions to
work properly. It's worth the effort...

The table is one of the first things that gets loaded when your thinkpad
boots, if it is faulty (the DSDT on both versions R50P BIOS I tried was
faulty) - certain things do not work properly (perhaps sensors not
working or fans not stopping). If it is faulty, you can compile your own
and build in into your kernel.

This page explains the procedure quite nicely - the process looks
difficult but even I managed to do it! (I have no background in BIOS
programming)
http://home.fhtw-berlin.de/~s0502837/r31/

Regards,
Niel

-----Original Message-----
From: linux-thinkpad-admin@linux-thinkpad.org
[mailto:linux-thinkpad-admin@linux-thinkpad.org] On Behalf Of
veith@codezilla.de
Sent: 19 May 2004 09:08 AM
To: linux-thinkpad@linux-thinkpad.org
Subject: [ltp] Re: RE: [ltp] lm-sensors


hello,
sorry, but what is DSDT, I'm a bit slow today....
(I think R40 and R50 differ a little...)

Niel Lambrechts <antispam@absamail.co.za> schrieb am 19.05.2004,
00:00:10:
> I got it running on R50P. In fact, I have also managed to run it on
the
> latest BIOS. By recompiling your DSDT, you will also eliminate things
> like the lid sensor not working etc....
> 
> I use swsusp2, since it is very reliable on resume. The only
> unresolvable problem I currently have is the pathetic ATI driver - you
> can't resume with fglrx loaded under any power management scheme I
know
> of...
> 
> If you're interested in recompiling your dsdt, let me know, or search
> for dsdt/pmtools/iasl on google.
>  
> Regards,
> Niel
> 
> -----Original Message-----
> From: linux-thinkpad-admin@linux-thinkpad.org
> [mailto:linux-thinkpad-admin@linux-thinkpad.org] On Behalf Of Ch.
Veith
> Sent: 17 May 2004 08:49 PM
> To: linux-thinkpad@linux-thinkpad.org
> Subject: Re: [ltp] lm-sensors
> 
> hello Niel,
> what hardware are you running?
> got ACPI running on R40?
> 
> chris
> 
> Niel Lambrechts wrote:
> > I would not take the chance. 
> > 
> > IMHO, you would be far better off using ACPI, which provides (to me)
> all
> > the sensors/monitoring that you could dream of - CPU temperature,
> > throttling, operating frequency and other almost useful info.
> > 
> > Regards,
> > Niel
> > 
> > -----Original Message-----
> > From: linux-thinkpad-admin@linux-thinkpad.org
> > [mailto:linux-thinkpad-admin@linux-thinkpad.org] On Behalf Of
> > veith@codezilla.de
> > Sent: 17 May 2004 10:58 AM
> > To: linux-thinkpad@linux-thinkpad.org
> > Subject: [ltp] lm-sensors
> > 
> > 
> > Hello everybody,
> > i would like to know about lm-sensors, because I read some times
ago,
> > that this package could harm thinkpads. (But this warning seemed
quite
> > old to me...) So my question is: Can I run lm-sensors on a TP-R40
> > without danger? or is the warning still up to date?
> > 
> > thanX.
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