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[Bug 1480877] Re: Access points' "PropertiesChanged" dbus signals freeze UI on mobile devices


Here my feedback from installing silo 10 as per bug #1462664. I have
been walking to town today and did not notice any lag for the time i was
in town. Normally i am experiencing some hangs of more than 1 min before
i can get a working phone. Today i checked repeatedly my phone and it
did wake up like a normal phone it would be nice if someone could
confirm this behaviour. I did get though a lot of dialog menu as per
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1508563. This is
less problematic than missing phone calls because the phone is slow as
hell because of this bug.

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  Access points' "PropertiesChanged" dbus signals freeze UI on mobile

Status in Canonical System Image:
Status in indicator-network package in Ubuntu:
Status in network-manager package in Ubuntu:
Status in location-service package in Ubuntu RTM:
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Bug description:
  Krillin, rc-proposed, r83

  I've been trying to track down the cause of the occasional UI freezes on my Krillin device, and I noticed that whenever the UI freezes for 2-4 seconds, I get a burst of "PropertiesChanged" signals in dbus-monitor

  Here's a log of what's shown in dbus-monitor:

  I'd guess the problem is in the code that actually catches the signals
  and acts accordingly.

  1) Move to a place where many wifi hotspots are available
  2) Connect the device via USB and run "phablet-shell" and then "dbus-monitor"
  3) Use the device while keeping an eye on dbus-monitor output

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