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[Bug 1464738] Re: System freeze on switching to wireless network


This bug affects me too. Is there any solution?

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  System freeze on switching to wireless network

Status in network-manager package in Ubuntu:

Bug description:
  Description:    Ubuntu 15.04
  Release:        15.04

  This is a HP ProBook 6570b notebook.
  It freezes after logging in when connecting to WLAN.
  Occurs only when static IP configured.
  Doesn't occur when network-manager disabled (/etc/network/interfaces used)


  1. Configure WLAN static IP, DNS
  2. Reboot
  3. After login, (after the "you are connected to aa wifi network" message disappears) the system freeze

  Another case:

  1. Login with WLAN disabled by hardware switch
  2. Connect to ethernet network
  3. Configure WLAN static IP, DNS
  4. Turn on WLAN and connect to a network
  5. Now the system wont freeze as the primary network connection is the ethernet
  6. Unplug the ethernet cable 
  7. Some seconds later the system freeze


  Turn off WLAN before login


  Turn off  WLAN before unplug cable
  Then turn it on

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: network-manager
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jun 12 19:22:20 2015
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2015-05-07 (36 days ago)
  InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
   default via dev eth0  proto static  metric 1024 dev eth0  scope link  metric 1000 dev wlan0  proto kernel  scope link  src dev eth0  proto kernel  scope link  src
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
   DEVICE  TYPE      STATE      DBUS-PATH                                  CONNECTION          CON-UUID                              CON-PATH                                           
   eth0    ethernet  connected  /org/freedesktop/NetworkManager/Devices/1  Wired connection 1  eb3175ee-4070-4a74-bfe9-407216bfa6e1  /org/freedesktop/NetworkManager/ActiveConnection/0 
   wlan0   wifi      connected  /org/freedesktop/NetworkManager/Devices/2  DSL-Kecskemet       259040d7-dcfb-417d-aeaf-e6f6d378c3ea  /org/freedesktop/NetworkManager/ActiveConnection/2 
   lo      loopback  unmanaged  /org/freedesktop/NetworkManager/Devices/0  --                  --                                    --
  nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

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