Re: etch on latitude
Celejar a écrit :
> On Fri, 29 Jun 2007 12:48:13 +0200
> Jean-Marie Mouchel <jean-marie.mouchel@ccr.jussieu.fr> wrote:
>
> [snip]
>
>
>> And one problem with cpu_frequency. A device is not found (I still do
>> not know what should be found!):
>> FATAL: Error inserting acpi_cpufreq
>> (/lib/modules/2.6.18-4-686/kernel/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.ko):
>> No such device
>>
>
> The message is trying to say (admittedly not very clearly) that that
> particular cpufreq driver doesn't work with your cpu. The loadcpufreq
> script (from cpufrequtils) is incorrect for (at least) Celerons; see
> bug #428248. You can try p4_clockmod, but it doesn't seem to
> accomplish very much in the sense of power saving (it does drastically
> reduce system responsiveness :( ); see the above bug, and also the 3
> bugs mentioned in the loadcpufreq script (#396117, #342014, #367307).
>
Thanks.
I tried p4_clockmod (in /etc/modules) which worked well, the system is
still responsive (on my dell D610 laptop).
But p4_clockmod suggests (when loading) to use speedstep_centrino for a
Pentium M cpu.
It also works well (I mean : battery is much saved and the cpu is very
much cooler !).
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Jean-Marie Mouchel
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