Hello,
Just for the record, I get the same problem here with powertop 1.13 on
an HP 6730b laptop with the Squeeze's 2.6.32 kernel :
PowerTOP 1.13 (C) 2007 - 2010 Intel Corporation
Collecting data for 15 seconds
Cn Avg residency
C0 (cpu running) ( 4.4%)
C0 0.0ms ( 0.0%)
C1 mwait 0.0ms ( 0.0%)
C2 mwait 0.9ms (13.5%)
C6 mwait 2.7ms (82.1%)
P-states (frequencies)
Turbo Mode 4.0%
2.40 Ghz 0.1%
1.60 Ghz 0.3%
800 Mhz 95.7%
Wakeups-from-idle per second : 456.3 interval: 15.0s
Power usage (ACPI estimate): 1.1W (52.2 hours)
Top causes for wakeups:
…
Whereas another small omn tool is showing :
BAT0: -93% 11.5W [4h24']
There seem to be about a 1/10 ratio.
I didn't tested yet the proposed patch.
Fred.
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