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[Bug 1429887] Re: Sometimes need 3 power button presses to turn on screen

 

Thanks, Ari.  I also happened to catch this several times this weekend
on my phone, which is running rc-proposed (so OTA7+).

Here's an interesting tidbit though: I tried waiting after the first
power button press.  So rather than thinking "oh, I must not have hit it
right" and pressing it again (thus causing the screen to flash on and
then off immediately), I waited.  Sometimes it took a LONG time like
30s.  But the screen eventually came on by itself.

So this bug is *not* about the screen not coming on at all after a
press.  But rather a long delay.

Folks that are experiencing this bug: can you please verify by also
waiting next time your screen doesn't immediately come on after pressing
the power button?  Please wait up to a minute to test.

Knowing it's a delay may help narrow this down.  A delay that
immediately gets short-circuited when the power button is pressed
again...

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https://bugs.launchpad.net/bugs/1429887

Title:
  Sometimes need 3 power button presses to turn on screen

Status in Canonical System Image:
  Incomplete
Status in Unity System Compositor:
  New
Status in powerd package in Ubuntu:
  Confirmed
Status in unity8 package in Ubuntu:
  Confirmed

Bug description:
  [filing here although may be other components]

  Mako running 211 from rtm
   I experienced these symptoms which have been previously mitigated in other scenarios.
  Last week while traveling and roaming this happened pretty much 100% of the time.
  This occurred in all areas (hotel, MWC, outside, etc)

  Press power button, no response
  Press button again, screen turns on for a few seconds then turns off
  Press button again, either phone resumes or more often the power dialog is shown

  When I returned back home the function was normal without reboot or
  other changes.

  The differences in environment:
  Roaming on foreign GSM network
  Lots of Wifi APs not connected

  Attached are some perhaps relevant logs, unfortunately the syslog
  rolled.

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