** Changed in: network-manager (Ubuntu) Importance: Undecided => High
-- 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/1624211 Title: Network-manager randomly won't recognize wireless card after resuming from sleep or hibernation or when disabling/reenabling the card Status in network-manager package in Ubuntu: Confirmed Bug description: When resuming from sleep or coming out of hibernation and sometimes when disabing and reenabling the wireless card (using Fn + the corresponding key), network-manager will stop recognizing that there's a wireless card in my laptop. The bluetooth applet and the card themselves still work. I can still connect to the same network it was connected before putting it to sleep/hibernate (because it's a known network and it does so automatically) but network-manager won't display anything regarding me having a wireless card, displaying the icon and information I would expect if I were connected using an ethernet cable. A workaround consists in restarting the network-manager service using systemctl sudo service network-manager restart or sudo systemctl restart network-manager.service The system is a Dell Vostro 5470 running a fresh installation of Ubuntu 16.04.1. If I recall correctly, this also happened with Ubuntu 14.04.4 too. BIOS version is A12 (the latest). I've seen several people with problems like this one that were solved by restarting network-manager (a quick Googling shows a handful of such cases). This can be a huge turn off for a newcomer. Some people also suggested creating a systemd service to restart the network-manager service when resuming, etc. but since this bug also occurs when disabling/reenabling the card, it might have another cause that's unrelated to resuming from sleep. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.2.0-0ubuntu0.16.04.3 ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16 Uname: Linux 4.4.0-36-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: Unity Date: Fri Sep 16 01:26:01 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-09-10 (6 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) IpRoute: default via 192.168.1.1 dev wlp8s0 proto static metric 600 169.254.0.0/16 dev wlp8s0 scope link metric 1000 192.168.1.0/24 dev wlp8s0 proto kernel scope link src 192.168.1.248 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ProcEnviron: LANGUAGE=pt_BR:pt:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=pt_BR.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH wlp8s0 wifi connected /org/freedesktop/NetworkManager/Devices/0 That's no moon! 1 2a59043a-02a4-4da0-ab5c-3c89c52bd15f /org/freedesktop/NetworkManager/ActiveConnection/1 enp7s0 ethernet unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/2 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.0 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1624211/+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
