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[Bug 1372413] Re: Extensive battery drain on RTM

 

I also compared 10 minutes of file process wakeup activity (old pre-
Christmas image vs lastest RTM image) and I'm seeing little different
between old vs new, so no obvious regressions there.

See attached files (spreadsheet and old vs new file activity logs).

** Attachment added: "wakeup-events.tar"
   https://bugs.launchpad.net/ubuntu/+source/powerd/+bug/1372413/+attachment/4299220/+files/wakeup-events.tar

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https://bugs.launchpad.net/bugs/1372413

Title:
  Extensive battery drain on RTM

Status in the base for Ubuntu mobile products:
  Confirmed
Status in powerd package in Ubuntu:
  Confirmed

Bug description:
  Mako, RTM 1

  Since upgrading to RTM the battery life is really poor. What used to
  be a battery drain of 5-10% per hour (which is still high) is now
  10-15% per hour. Sometimes the phone runs really hot, so there seem to
  be something going on in the background that is consuming power. I
  mostly have bluetooth, GPS (which isn't always working), wifi and
  cellular on, but that's no difference from when I was running 'devel-
  proposed' with MultiROM with much less battery consumption.

  As an example, I started with a full charge at 7am. After some web
  surfing (<15 mins) and watching a couple of youtube videos (on wifi)
  battery was down to 66% at 9:15. That's 34% in just over two hours! I
  recharged again before lunch and had the phone idle until coming back
  1 hour and 45 mins later to find only 75% of battery left, this time
  without the phone running particularly hot.

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References