I'm pretty sure powertop is correct (doesn't it use the CPU itself to get the stats?). The reason being that the temperature sensors rise by about 10-15 degrees and my battery life is shot to bits :)
Can you reproduce it at all? This line from powertop also piqued my interest: 57.0% (403.1) <kernel IPI> : Rescheduling interrupts What's going on there? -- Powertop reports huge number of wakeups and drains battery https://bugs.launchpad.net/bugs/145377 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs