AMD Sempron Mobile CPU: No C-States and USB_Suspend - session 2

Andrey Melentyev andrey.melentyev at gmail.com
Thu May 17 07:58:30 PDT 2007


> But i don't understand: the output says: "active state: C1" and
> "max_cstate: C8" - if this don't mean i have upto 8 states?

My VIA C7-M has got similar behaivor. max_cstate: C8, but only 2 are 
available.

$ cat /proc/acpi/processor/CPU0/power
active state:            C2
max_cstate:              C8
bus master activity:     00000000
maximum allowed latency: 2000 usec
states:
    C1:                  type[C1] promotion[C2] demotion[--] latency[001] 
usage[00000660] duration[00000000000000000000]
   *C2:                  type[C2] promotion[--] demotion[C1] latency[001] 
usage[01515944] duration[00000000034901911926]





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