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[Bug 1439771] Re: wpa_supplicant[874]: dbus: Failed to construct signal after 'suspend'

 

I'm seeing something very much like this (same syslog messages, e.g.)
but the differences are:

1) It's on a wired interface (802.1x wired)
2) Suspend isn't involved; it never works
3) Wireless 802.1x works perfectly on the same machine (although I haven't tried suspending it; it's my work machine and is always lid-open in a dock)

Hardware is a new ThinkPad W541 with Ultradock (but wired 802.1x doesn't work undocked, either).
OS is a fresh install of Ubuntu 15.04.

I'll try switching to Upstart later today and see if that helps; FWIW, I
booted a live 14.04 DVD and wired 802.1x didn't work there, either, so I
don't have high hopes for Upstart, but I'll try it.

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https://bugs.launchpad.net/bugs/1439771

Title:
  wpa_supplicant[874]: dbus: Failed to construct signal after 'suspend'

Status in dbus package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  New

Bug description:
  The Wifi network can't connect after the wake up from suspend. Xubuntu
  15.04

  I'll post more useful details (journalctl log) as a comment to this
  bug report.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: dbus 1.8.12-1ubuntu5
  Uname: Linux 4.0.0-040000rc5-generic x86_64
  ApportVersion: 2.17-0ubuntu1
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Thu Apr  2 18:18:56 2015
  InstallationDate: Installed on 2015-03-27 (5 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
  SourcePackage: dbus
  UpgradeStatus: No upgrade log present (probably fresh install)

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References