http://bugzilla.kernel.org/show_bug.cgi?id=12304





------- Comment #47 from mprosi...@volny.cz  2009-01-23 08:57 -------
Conclusion:
'Intel(R) Core(TM)2 Duo CPU     T9400  @ 2.53GHz'

*** Linux (e.g. 2.6.29-rc1-10) ***

With AC plugged

800 MHz ......... freeze
1600 MHz ........ freeze
2534(2533) MHz .. OK

With battery

no freeze when AC unplugged, but operation time limited due to battery. (800
and 1600 MHz)

*** M$ OSs: ***

800 MHz ......... not used
1600 MHz ........ OK
2534(2533) MHz .. OK

ykzhao,
is there anything else I can test? To me, it seems like problem with
"overvoltaged" processor when NB is AC pluged. But not sure because I did not
find a way how to measure it from Linux.
What component controls the CPU core voltage? Is it on OS level (acpi_cpufreq)
or is it independent of OS?


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