Public bug reported:
Binary package hint: compiz
It used to be possible to configure Compiz to not generate interrupts at
60Hz to save some battery.
I’m not sure what’s going on nowadays with things like .drirc and buffer
swaps and so on.
The thing is in 0.8.6 Compiz didn’t feature prominently in Powertop when
»Sync to VBlank« was disabled (and neither did i915), it had less than 5
wakeups per second and i915 almost none. Now in natty it has 60-70
wakeups, the most CPU waking process. I could figure out how to get rid
of these.
Top causes for wakeups:
26.1% ( 70.0) compiz
24.5% ( 65.7) [i915] <interrupt>
17.1% ( 46.0) [extra timer interrupt]
8.4% ( 22.7) [iwlagn] <interrupt>
** Affects: compiz (Ubuntu)
Importance: Undecided
Status: New
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Regression from 0.8.6 to 0.9.2: Wakes up CPU at 60 Hz
https://bugs.launchpad.net/bugs/681696
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