@Aron Xu, I can you be sure the problem is not Network Manager related? I do not say you are wrong, but could you point to some evidence that the Network Manager is not involved with this? Searching through the comments, the word 'kernel' does not show often and none suggest that the problem is within the kernel per say. I believe that you are closing the issue on the Network Manager hastily.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1380480 Title: network disabled after suspend - resume Status in linux package in Ubuntu: Confirmed Status in network-manager package in Ubuntu: Invalid Bug description: Background: this started to happen after the upgrade to Utopic Beta 1 3) When I close the laptop's lid and open, the wifi should reconnect 4) Wifi does not reconnect. It says "Wi-Fi networks" - "disconnected" when I left-click on NM icon in notif area. However the context menu (right-click) has items "Enable networking" and "Enable Wi-Fi" both with checkmarks. Workarounds: switch off - on the physical switch on laptop OR two times go and select "Enable networking" in the NM context menu (after first time it removes checkmark and the "Enable Wi-Fi" item - visual feedback of being disabled). ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: network-manager 0.9.8.8-0ubuntu27 ProcVersionSignature: Ubuntu 3.16.0-21.28-generic 3.16.4 Uname: Linux 3.16.0-21-generic x86_64 ApportVersion: 2.14.7-0ubuntu5 Architecture: amd64 CurrentDesktop: XFCE Date: Sat Oct 11 22:33:06 2014 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-07-21 (447 days ago) InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IpRoute: default via 192.168.10.1 dev wlan0 proto static 10.9.9.0/24 dev vboxnet0 proto kernel scope link src 10.9.9.1 192.168.10.0/24 dev wlan0 proto kernel scope link src 192.168.10.239 metric 9 SourcePackage: network-manager UpgradeStatus: Upgraded to utopic on 2014-09-25 (16 days ago) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2014-07-19T15:03:44.847279 nmcli-dev: DEVICE TYPE STATE DBUS-PATH eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/1 wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.8 connected enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1380480/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp