Messages in this thread | | | Date | Mon, 06 Jun 2005 14:47:46 +0200 | From | Prakash Punnoor <> | Subject | Re: cpufreq/speedstep won't work on Sony Vaio PCG-F807K |
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Dominik Brodowski schrieb:
>>If I enable speedstep in bios and force it, Linux reports 133MHz or >>alike as CPU speed,which seems to be a more realistic lower limit, as I don't >>think going to 500MHz will save me much. > > > However, the CPU only supports 500 MHz or 600 MHz. Possibly, the other > effect you're seeing is from CPU frequency throttling which is (mostly) > useless.
Ok, I did some more experiments and it seems you are right. Then it seems Linux miscalculates the MHz if I select Auto in the BIOS. (I need to use acpi pm timer then, otherwise I get lost ticks with tsc.) It is *not* throtteling which results in this, as I can still throttle down via acpi by hand and then the laptop feels very sluggish (same if Linux reports 133 or 500MHz). So I wonder a bit how this comes, but well...
Thanx anyway,
Prakash [unhandled content-type:application/pgp-signature] | |