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 Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1184262 Title: network-manager has decided that networking is disabled, cannot be re- enabled from lightdm Status in “network-manager” package in Ubuntu: Confirmed Bug description: After a suspend/resume, network-manager claimed that wireless was not available and would not let me reconnect to the wireless here. 'iwlist wlan1 scan' would also not work; so thinking that it was a driver problem, I rebooted the system. When it came back up, nm- applet in lightdm claimed that networking was disabled, and the option to enable it was greyed out. It could also not be enabled by nmcli. I ended up stopping network-manager, bringing up the interface via /etc/network/interfaces, and logging in... at which point, restarting network-manager *did* let me enable networking from my logged-in session. So there are several problems here: - after a reboot, network-manager claimed networking was disabled. - nm-applet is not letting me enable networking from the lightdm session. - the networking was failing after a suspend/resume cycle, and could not be enabled even from inside the user session. The last issue probably *was* a kernel driver problem; but the first two issues are network-manager problems of some kind. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: network-manager 0.9.8.0-0ubuntu8 ProcVersionSignature: Ubuntu 3.9.0-2.7-generic 3.9.3 Uname: Linux 3.9.0-2-generic x86_64 ApportVersion: 2.10.2-0ubuntu1 Architecture: amd64 Date: Sat May 25 21:38:31 2013 InstallationDate: Installed on 2010-09-24 (974 days ago) InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1) IpRoute: default via 192.168.1.1 dev wlan1 10.0.3.0/24 dev lxcbr0 proto kernel scope link src 10.0.3.1 169.254.0.0/16 dev wlan1 scope link metric 1000 192.168.1.0/24 dev wlan1 proto kernel scope link src 192.168.1.106 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=false WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: Upgraded to saucy on 2013-05-06 (19 days ago) WifiSyslog: nmcli-con: Error: command ['nmcli', '-f', 'all', 'con'] failed with exit code 9: ** (process:11977): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files Error: nmcli (0.9.8.0) and NetworkManager (unknown) versions don't match. Force execution using --nocheck, but the results are unpredictable. nmcli-dev: Error: command ['nmcli', '-f', 'all', 'dev'] failed with exit code 8: Error: NetworkManager is not running. nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN not running unknown unknown unknown unknown unknown unknown unknown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1184262/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp