Comment 107 for bug 524454

Revision history for this message
The Gavitron (me-gavitron) wrote :

This bug still exitsts in lucid-current:
> uname -a
Linux unicron 2.6.32-42-generic #95-Ubuntu SMP Wed Jul 25 15:56:09 UTC 2012 x86_64 GNU/Linux
> lsb_release -r
Release: 10.04
> aptitude show network-manager |grep Version
Version: 0.8-0ubuntu3.3

This bug hit me when hibernating the machine failed. On all subsequent restarts, the machine would not automatically reconnect to the wired network, but dhclient could grab an IP if run manually. All "network state aware" applications, ie: Chrome & pidgin exhibited broken behaviours after obtaining a network address - Pidgin refused to connect to any services at all. Chrome could browse, but all application icons on the 'New Tab' page were grayed out, and no plugins would start.

to fix DHCP, I had to edit /etc/network/interfaces, and uncomment the following line:
# iface eth0 inet dhcp

while this allowed the machine to connect to the network at boot, the problems with the applications persisted. Thanks to this bug report, I was able to find that /var/lib/NetworkManager/NetworkManager.state contained the line:
  NetworkingEnabled=false

by changing this line to true, then running:
 sudo service network-manager restart

I was able to reconnect.

since 10.04 is still under LTS support, I certainly hope there is an effort to fix this 2+ year old bug, rather than hope it goes away when support is dropped in 2013...