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
