Re: Instability without ACPI

[Ducrot Bruno <ducrot-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>]

On Fri, Jul 11, 2003 at 07:17:25PM +0100, Sérgio Monteiro Basto wrote:
> On Fri, 2003-07-11 at 18:26, Ducrot Bruno wrote:
> > 
> > You probably need acpi due to power states for the cpu.  Common problem
> > with laptop shipped with athlon in general (there is a tool called
> > lvcool though if you do not have acpi).
> 
> sounds cool
> I have one athlon 4 on one KT133.
> but after reading 
> http://cip.uni-trier.de/nofftz/linux/Athlon-Powersaving-HOWTO.html
> 
> in 2.5
> This is the only solution which does not use the ACPI system of the
> Linux kernel. 

This one will do exactly what ACPI does (that is, in the main loop,
read LVL2 register).  So the exact same issue will likely happens.

...

> 2.1. The Command-line Hack
> you can enable/disable the power-saving right from the command-line
> without any need for rebooting.
> 
> on KT133/133A, KX133, KL/KLE133, KM/KN133, ...:
> enable: setpci -v -H1 -s 0:0.0 52=$(printf %x $((0x$(setpci -H1 -s 0:0.0
> 52) | 0x80)))
> disable: setpci -v -H1 -s 0:0.0 52=$(printf %x $((0x$(setpci -H1 -s
> 0:0.0 52) & 0x7f))) 
> 
> How I know if it enable or disable ?

setpci -H1 -s 0:0.0 52
then look if bit 8 is set (enable) or not (disable).

> is it safe try this commands?

I don't know.

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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