On Fri, Oct 12, 2007 at 08:44:33AM -0700, Scott Ellis wrote:

> Interesting.  When you booted on AC, do you recall if the feature was
> masked
> out of the features2 list, or if you got a note on boot?  From my reading
> of
> identcpu.c it looks like if the EST feature is listed and it's an Intel
> CPU,
> then you should at least get a warning that the BIOS has disabled
> SpeedStep:
...

  I checked; yup, EST is listed under features2 in both cases.
Then I compared the two dmesg.boot files, though, and there were
a couple differences:

    babygrand# diff dmesg.boot.noest dmesg.boot
    20c20
    < cpu0: Intel Core 2 (Merom) (686-class), 1995.26 MHz, id 0x6fa
    ---
    > cpu0: Intel Core 2 (Merom) (686-class), 1995.21 MHz, id 0x6fa
    28a29,32
    > cpu0: Enhanced SpeedStep (1452 mV) 2200 MHz
    > cpu0: unknown Enhanced SpeedStep CPU.
    > cpu0: using only highest and lowest power states.
    > cpu0: Enhanced SpeedStep frequencies available (MHz): 2200 1200
    34c38
    < cpu1: Intel Core 2 (Merom) (686-class), 1995.00 MHz, id 0x6fa
    ---
    > cpu1: Intel Core 2 (Merom) (686-class), 1994.92 MHz, id 0x6fa
    53,54c57,58
    < timecounter: Timecounter "ACPI-Safe" frequency 3579545 Hz quality 900
    < ACPI-Safe 24-bit timer
    ---
    > timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
    > ACPI-Fast 24-bit timer
    103c107
    < acpitz1: critical 100.0C passive 52.0C
    ---
    > acpitz1: critical 100.0C passive 65.0C
    babygrand#

Cheers,  --Dave