First I ran "sudo stop network-manager" then ran "sudo NetworkManager --no-daemon --log-level=DEBUG >nm.log 2>&1" and then I reproduced the issue. I have attached the complete log output of network-manager from the initial receive of the "suspend" signal to the point I ctrl-C'ed it after experiencing this bug.
For context, this system has two ethernet ports (eth0, eth1) that had no attached cable during the experiment, and one atheros wifi card (wlan0) which was connected. Hopefully something in here (or the lack of something in here) will be helpful. ** Attachment added: "Network Manager Log Output" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1184262/+attachment/3855681/+files/nm.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1184262 Title: network-manager has decided that networking is disabled, cannot be re- enabled from lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1184262/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs