also i get these two errors. kernel version 2.6.20-rc1-mm1 ACPI Exception (acpi_processor-0680): AE_NOT_FOUND, Processor Device is not present [20060707] ACPI Exception (acpi_processor-0680): AE_NOT_FOUND, Processor Device is not present [20060707] and, acpi_processor-0740 [00] processor_preregister_: Error while parsing _PSD domain information. Assuming no coordination does power management "no" mean, hardware does not suppport it? or can it be enabled? On 12/21/06, Alexey Starikovskiy <alexey.y.starikovskiy@xxxxxxxxxxxxxxx> wrote:
6 is lowest FSB multiplier, 0.266*6 = 1.6GHz -- your lowest. 7 is multiplier to get 1.86Ghz -- your max. "power management: no" means power management is disabled. Balaji Rao wrote: > also, the file cat /proc/acpi/processor/CPU1/info gives this > > processor id: 0 > acpi id: 1 > bus mastering control: yes > power management: no > throttling control: yes > limit interface: yes > > Is power management not available according to this file? > > One more thing is that, only two frequency levels ( 1.86 and 1.6 Ghz) > are being used. This does not cause much power saving.. > > How many levels are actually available on core 2 duo? > > I cant find any PSS in the DSDT dump. > > On 12/21/06, Alexey Starikovskiy > <alexey.y.starikovskiy@xxxxxxxxxxxxxxx> wrote: >> Then you should check your BIOS settings for DBS/EST/speedstep etc >> support. >> C1 is the only C-state supported on CoreDuo2. >> PSS should give you P-states. >> >> Balaji Rao wrote: >> > But, acpidump doest give me anything saying SSDT.. >> > Actually the problem is, only one power state(C1) is being shown up in >> > my Core 2 Duo (E6300) box. >> > >> > Also, power management is reported as not available. >> > >> > Where can i look for a solution? >> > >> > >> > On 12/21/06, Alexey Starikovskiy >> > <alexey.y.starikovskiy@xxxxxxxxxxxxxxx> wrote: >> >> Balaji Rao wrote: >> >> > Hello all, >> >> > >> >> > Are the various power levels supported by the processor provided >> only >> >> > through the DSDT? Or is there any other table for this purpose? >> >> > When i disassembled my DSDT, i could not find any _PSS Packages. >> >> > >> >> > From where does the kernel read values into the frequency table? >> >> > >> >> > Also, which is the mechanism that decides to load the appropriate >> >> > cpufreq driver? >> >> > >> >> > warm regards >> >> > >> >> > Balaji Rao >> >> > - >> >> > To unsubscribe from this list: send the line "unsubscribe >> >> linux-acpi" in >> >> > the body of a message to majordomo@xxxxxxxxxxxxxxx >> >> > More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> Check SSDTs as well. >> >> >> >> Regards, >> >> Alex. >> >> >> > >> > >> > >
-- warm regards Balaji Rao - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html