Don't know if this helps:
[EMAIL PROTECTED]:~$ cat /proc/acpi/processor/CPU0/power
active state: C0
max_cstate: C8
bus master activity: 00000000
maximum allowed latency: 2000 usec
states:
C1: type[C1] promotion[--] demotion[--] latency[001]
usage[00000000] duration[00000000000000000000]
C2: type[C2] promotion[--] demotion[--] latency[001]
usage[00000000] duration[00000000000000000000]
C3: type[C3] promotion[--] demotion[--] latency[085]
usage[00000000] duration[00000000000000000000]
C4: type[C3] promotion[--] demotion[--] latency[185]
usage[00000000] duration[00000000000000000000]
[EMAIL PROTECTED]:~$ acpi -t
Battery 1: charged, 100%
Thermal 1: ok, 77.0 degrees C
Thermal 2: ok, 50.0 degrees C
[EMAIL PROTECTED]:~$ cat /proc/acpi/processor/CPU0/info
processor id: 0
acpi id: 0
bus mastering control: yes
power management: yes
throttling control: no
limit interface: no
--
Powertop reports that CPU state is C0 100% of the time, regardless of number of
wakeups
https://bugs.launchpad.net/bugs/176553
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