Re: [Bugme-new] [Bug 13145] New: Processor does not go below C2 if mouse (uhci) is plugged in.

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> IIRC, C2-popup is supported since core architecture. The system (a T41)
> is unlikely support this.

The T41 is an ICH4M, Pentium M system.
C2 popup was not supported until ICH6M.

Thus, when USB is active, this system should detect bus master 
activity (as displayed in /proc/acpi/processor/CPU/power)
and should not enter C3 when such activity is (recently) present.

Len Brown, Intel Open Source Technology Center
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