Messages in this thread | | | Date | Wed, 5 Feb 2003 12:08:55 +0100 | Subject | Re: CPU detection | From | Ducrot Bruno <> |
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On Tue, Feb 04, 2003 at 11:01:16PM +0000, Alan Cox wrote: > On Tue, 2003-02-04 at 18:26, Banai Zoltan wrote: > > Hi! > > > > I have a Toshiba Satelite S2210CDT. > > There is a problem with detecting CPU frequency. > > It runs on 258Mhz, but it is an 500Mhz Celeron kernels 2.4.19-pre7-ac4 > > and 2.4.20. > > i attach the configs and the output of lscpi, /proc/cpu > > I trust our measuring code. Most likely the laptop has speedstep so is > running at 250Mhz to save power. If you've got a currentish -ac kernel > you can load the speedstep cpufreq support and flip the CPU between fast > and slow mode as you want. In some cases APM will also do the work for > you >
Celerons do not support speedstep, but BIOS can enable throttling (toshiba like to make that in order to prevent heat issues), then APM idle calls can perhaps help I guess.
-- Ducrot Bruno http://www.poupinou.org Page profaissionelle http://toto.tu-me-saoules.com Haume page - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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