[ltp] poor battery-life on X60T

[Igor V. Rafienko]

on Feb 4, 2007, 09:43, David A. Desrosiers wrote:

[ ... ]

> I just checked on my T42p just to see what it was, and I see:
>
> active state:            C2
> max_cstate:              C8
> bus master activity:     ffffffff
> states:
>    C1:                  type[C1] promotion[C2] demotion[--]
> latency[000] usage[00000010] duration[00000000000000000000]
>
>   *C2:                  type[C2] promotion[C3] demotion[C1]
> latency[001] usage[79534381] duration[00000000203019270862]
>
>    C3:                  type[C3] promotion[--] demotion[C2]
> latency[085] usage[00000000] duration[00000000000000000000]
>
> What should these be?


Ideally? While on battery, C4 (and bus master activity of 0). Possible 
culprits are uhci_hcd, processor.max_cstate=2.





ivr
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