http://bugzilla.kernel.org/show_bug.cgi?id=8955
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |REJECTED
Resolution| |INVALID
------- Comment #5 from [EMAIL PROTECTED] 2007-08-31 13:49 -------
re: comment #4
that is correct, if ACPI the BIOS doesn't have _PCT and _PPC,
then it doesn't have P-state support.
Further, this BIOS has no SSDT, no _PDC
and no Load() instructions, so what you see is what you get.
> Genuine Intel(R) CPU L2400 @ 1.66GHz
The specs for the L2400 do say that it has
Enhanced Intel Speedstep® Technology
http://processorfinder.intel.com/Details.aspx?sSpec=SL8VW
so the processor hardware does support P-states.
note that it is conceivable (though I've never seen it on a notebook)
that the reason that the BIOS doesn't have support is because the
motherboard doesn't have support.
I think if the notebook as a Centrino sticker on the outside,
that it is likely that it is required to support P-states.
So your best bet is to check for the latest BIOS from the
laptop supplier. Also, it is possible that they disabled
this by default and there are some BIOS SETUP options that
will give you what you are looking for.
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