Re: Processor C states and USB problem

[Michael Guntsche <mike-Z92qn3yYq0hWk0Htik3J/w@public.gmane.org>]

On Sun, 18 Jan 2004 13:57:59 +0800
"Yu, Luming" <luming.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:

> 
> > Under 2.4 bus master always shows "ffffffff" on my notebook. Sometimes
> > shutting down USB helps, sometimes it doesn't.
> > Running under 2.6 I only get full bus master activity if an USB
> > mouse is plugged in.
> 
> Could you post output from " cat /proc/acpi/processor/CPU0/power"
> I want to check the usage of C3.

active state:            C2
default state:           C1
bus master activity:     9292d292
states:
    C1:                  promotion[C2] demotion[--] latency[000] usage[00000010]
   *C2:                  promotion[C3] demotion[C1] latency[001] usage[00086443]
    C3:                  promotion[--] demotion[C2] latency[085] usage[00012776]


This is 2.6.1 with no USB mouse plugged in.


Michael


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