touch-packages team mailing list archive

[Colin Ian King <1372413@xxxxxxxxxxxxxxxxxx>]

I compared a 10 minute sleep from an image from pre-Christmas to the
latest RTM image and I see better deep suspend stats with the latest
image (see attached).

If Thomas can attach all the syslog files from /var/log/syslog we can
parse this with suspend-blocker and get an idea of what's been going on.
The stats you attached Pat look reasonable for the mako, it does pop out
of deep suspend every 60 or so seconds for a short while to handle
events from the modem front end.



** Attachment added: "tar file of old vs new suspend-blocker output"
   https://bugs.launchpad.net/ubuntu/+source/powerd/+bug/1372413/+attachment/4299178/+files/suspend-blocker.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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