On Fri, Sep 30, 2005 at 06:20:15AM -0700, Pallipadi, Venkatesh wrote:
> Actually, speedstep-centrino works in two modes. One OP()
> table based mode and the other ACPI table based mode. So,
> BIOS ACPI tables do matter for the second mode and things
> work without a static OP table.
True. Ack, I've spent too much time playing with that driver
and broken BIOS's lately, that I'd forgotten about this. :)
> In this particular case though, for Xeon with Enhanced Speedstep,
> acpi-cpufreq should be the driver of choice as there is a need
> for coordination of HT siblings, which happen in BIOS at the
> moment with most BIOSes. That is the reason, I want to make
> sure BIOS supports Enhanced Speedstep in this case.
Ok, that makes sense.
Dave
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