[ltp] CPU Throttling on R50p

[Alexander Gran]

Well, C3 Powersaving would reduce consumption a lot. Linux reports CPU spee=
ds=20
of 53Mhz than. However I've not managed to let the cpu go into C3 while usi=
ng=20
USB or AGP.

regards
Alex

Am Mittwoch, 9. M=E4rz 2005 18:52 schrieb Winsley von Spee:
> Thank ATI and praise the lord in hope of better drivers .... *g* ... or
> work in console ... *g*
>
> hmm If you are using the scaling abilities under windows the same way as
> under linux the difference shouldn't be so large anyway.
>
> Greetz
>
> On Wed, 09 Mar 2005 18:02:41 +0100
>
> Michael Gaber <Michael.Gaber@gmx.net> wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
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> >
> > ok that might be the cause, but i have still the problem, that under
> > linux i have only about 2 hours of battery while under windows i can
> > work about 4
> >
> > Winsley von Spee wrote:
> > | Hi
> > |
> > | The Pentium M CPU's aren't able to scale to a lower freq than 600 MHz.
> >
> > The newer one (the one with the dothan core) are only able to scale down
> > to 800 MHz. If something in Windows report a clock speed of 200 MHz it's
> > wrong. Throttling doesn't change the cpu clock it just adds idle cycles
> > to reduce the power consumption if the cpu is to hot.
> >
> > | cat /proc/acpi/processor/CPU/throttling
> > |
> > | Reports the available throttling states and which state is active.
> > |
> > | Greetz
> > |
> > | On Wed, 09 Mar 2005 15:40:52 +0100
> > | Michael Gaber <Michael.Gaber@gmx.net> wrote:
> > |
> > |
> > | well you can echo e.g. 200000 but it wont work, cause you can't alter
> > | the cpufreq_min_freq
> > |
> > | morpheus wrote:
> > | |>This can only go down to 600 MHz.
> > | |
> > | | There _is_ a file in /sys/devices/system/cpu/cpu0/cpufreq called
> > |
> > | "scaling_min_freq" which is set to 600000 on my system.  You could try
> > | setting this to a lower value if you want to go down further...I've
> > | never done this though and I'm not sure if it's recommended or will
> > | damange anything.  Does anyone else know?
> > |
> > | | -m
> > | |
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