touch-packages team mailing list archive

[Seth Forshee <seth.forshee+lp@xxxxxxxxxxxxx>]

Yeah it seems likely that some driver is probably being slow in its
late_resume handler. There may be something in dmesg which shows how
long individual late_resume calls are making, I can't remember (there
may also be some debug option which has to be enabled).

Iirc the reason we have to wait for the fb state to change was because
you can hit deadlocks with some of the phone kernels if you write state
changes to /sys/power/state without waiting. Android also waits for the
framebuffer state to change, so that's the only arrangement that's
probably tested by the phone makers as well.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to powerd in Ubuntu.
https://bugs.launchpad.net/bugs/1421455

Title:
  Slow wake up time on physical power button pressed

Status in powerd package in Ubuntu:
  New
Status in unity8 package in Ubuntu:
  Incomplete

Bug description:
  Device: bq Aquaris E4.5 running: Stable #17

  When pressing on physical power button on device to wake it up
  sometime it even takes up to 2-3 secs before anything appears on the
  screen. This time wary but its hard to tell then its shorter and when
  is longer.

  This is not so bad on nexus4.

  
  Should you need more info, I'm happy to help.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/powerd/+bug/1421455/+subscriptions