Messages in this thread | | | Subject | Re: Speedstep on centrino | From | Jeremy Fitzhardinge <> | Date | Thu, 22 Apr 2004 20:18:38 +1000 |
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On Sun, 2004-04-18 at 11:56, Alexander Hoogerhuis wrote: > I've been twaddling with getting SpeedStep right on my laptop (HP > nc6000, 1.6GHz P-M) and noticed a few odd things: > > Using regular SpeedStep is says to use speedstep-centrino due to > voltage regultion, etc.
Yep, that's reasonable.
> > Using SpeedStep for Centrino og gived me this line on boot: > speedstep-centrino: found "Intel(R) Pentium(R) M processor 1600MHz": max frequency: 1600000kHz
Looks normal.
> This seems to work and make the battery last an useful amount of time.
Good.
> Using SpeedStep for Centrino with decoding the speeds and voltages > (CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI) will not yield any output during > boot regarding cpufreq at all and the battery useage is heavy. ACPI is > enabled.
I've never managed to get ACPI working on my laptop, so I haven't tested this. I'm not sure what's going on here - maybe someone on the cpufreq list can help.
J
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