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    Subjectcpufreq doesn't seem to work in Intel Q9300
    Hi,

    I have an Intel Core 2 Quad and running kernel
    2.6.25.11-97.fc9.i686. cpufreq doesn't seem to work. The cpufreq
    scaling monitor in Gnome says CPU Freq scaling is not supported in my
    CPU. The CPU can run at 2.0 and 2.5 GHz but mine always runs at 2.5
    GHz in Linux.

    So I checked /sys and there is no cpufreq dir in /sys/...

    # ls /sys/devices/system/cpu/
    cpu0 cpu1 cpu2 cpu3 cpuidle sched_mc_power_savings
    # ls /sys/devices/system/cpu/cpuidle/
    current_driver current_governor_ro

    I have no clue what cpuidle directory is for.

    I added cpufreq.debug=7 in kernel boot params and saw the following in
    the dmesg:

    speedstep-smi: No supported Intel CPU detected.
    cpufreq-core: CPU 0: _PPC is 0 - frequency not limited
    cpufreq-core: CPU 3: _PPC is 0 - frequency not limited
    cpufreq-core: CPU 1: _PPC is 0 - frequency not limited
    cpufreq-core: CPU 2: _PPC is 0 - frequency not limited
    cpuidle: using governor ladder
    cpuidle: using governor menu

    I looked at arch/x86/kernel/cpu/cpufreq/speedstep-smi.c and it seems
    to detect only Pentium IIIs.

    Anyone know what files have the cpufreq code for Intel Core 2?
    Does cpufreq support Intel Core 2 Quads? Especially the Q9300? If not,
    anything I can do to help?

    Thanks,
    SK

    # cat /proc/cpuinfo
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 6
    model : 23
    model name : Intel(R) Core(TM)2 Quad CPU Q9300 @ 2.50GHz
    stepping : 7
    cpu MHz : 2502.516
    cache size : 3072 KB
    physical id : 0
    siblings : 4
    core id : 0
    cpu cores : 4
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 10
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
    pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
    constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2
    ssse3 cx16 xtpr sse4_1 lahf_lm
    bogomips : 5015.23
    clflush size : 64
    <snipped the rest> - shows 3 more similar sections.


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