← Back to team overview

desktop-packages team mailing list archive

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


This bug was fixed in the package network-manager
in https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/stable-


network-manager ( vivid; urgency=medium

  * d/p/0002-wifi-cull-the-scan-list-before-signalling-ScanDone-b.patch:
    Fix duplicate 'LastSeen' PropertiesChanged signals being emitted
    after scanning (LP: #1480877).
  * d/p/fix-ofono-plugin-leaks.patch: fix memory leaks in the ofono
    settings plugin.
  * d/p/rm-scofono-plugin-dbus.patch: Remove unused plugin DBus code.
  * d/p/CVE-2015-1322.patch: Drop CVE which applied to removed DBus code
    in ofono settings plugin.

 -- Tony Espy <espy@xxxxxxxxxxxxx>  Fri, 02 Oct 2015 10:54:24 -0400

** Changed in: network-manager (Ubuntu RTM)
       Status: Fix Committed => Fix Released

You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager in Ubuntu.

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

Status in Canonical System Image:
  Fix Committed
Status in indicator-network package in Ubuntu:
Status in location-service package in Ubuntu:
Status in network-manager package in Ubuntu:
  Fix Released
Status in network-manager package in Ubuntu RTM:
  Fix Released

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

To manage notifications about this bug go to: