power savings and usb

[Jeffrey Katcher]

On my T40, I see:
   hw.acpi.cpu.cx_lowest: 0
   hw.acpi.cpu.cx_supported: C1/1 C2/1 C3/85
   hw.acpi.cpu.cx_history: 197586/0 0/0 0/0
and the current power_profile script maintains cx_lowest as 0 
(i.e. not changing it on plug/unplug).  The 1st number in history is the only
one to increment.

I can manually set cx_lowest to 2, not 3, then history changes to:
   hw.acpi.cx_history: 0/0 2335/0 1710/30
with the latter two incrementing.

What does this mean?

Thanks in advance,

Jeff Katcher


	
		
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