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I'm not sure if this is a network-manager problem or a pm problem.
Since updating to trusty my laptop - Lenovo T510 - wakes from suspend
without wifi. Initially there the nm gui control showed no networks and
disonnected state. Ifconfig showed only the loopback. Wetting wlan0 to
up brought it back but nm wouldn't connect.
I created an unload_module entry and added:
SUSPEND_MODULES="$SUSPEND_MODULES iwlwifi"
to:
/etc/pm/config.d/unload_modules
After that the nm gui showed networks and tried to connect to the correct one
but was unsuccessful.
I created /etc/pm/sleep.d/network-manager-resume
#!/bin/sh
case "${1}" in
resume|thaw)
nmcli nm sleep false
;;
esac
but this hasn't helped.
I tried connecting directly using nmcli dev and got the error message:
Error: Connection activation failed: (53) The Wi-Fi network could not be
found.
Rebooting after waking restores networking.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue May 27 07:51:10 2014
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2013-11-19 (188 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
IpRoute:
default via 192.168.0.1 dev wlan0 proto static
192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.101 metric 9
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to trusty on 2014-05-01 (25 days ago)
nmcli-con:
NAME UUID TYPE
TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY
DBUS-PATH
martin-5.0 b4ef8c22-9ae1-4058-8bfc-c6442634467c
802-11-wireless 1401202160 Tue 27 May 2014 07:49:20 AM PDT yes
no /org/freedesktop/NetworkManager/Settings/2
Cisco03329 a94faf57-01c2-44ef-a474-1acb3523c839
802-11-wireless 1385160323 Fri 22 Nov 2013 02:45:23 PM PST yes
no /org/freedesktop/NetworkManager/Settings/1
martin-5.0 1 d662b0e5-a70d-4010-b3f8-846b6166a22a
802-11-wireless 0 never yes
no /org/freedesktop/NetworkManager/Settings/0
Wired connection 1 05195919-bf9a-49c1-9991-64ce5d41c081
802-3-ethernet 1401198260 Tue 27 May 2014 06:44:20 AM PDT yes
no /org/freedesktop/NetworkManager/Settings/3
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
wlan0 802-11-wireless connected
/org/freedesktop/NetworkManager/Devices/1
eth0 802-3-ethernet unavailable
/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 disabled
** Affects: linux (Ubuntu)
Importance: Low
Status: Incomplete
** Tags: amd64 apport-bug trusty
--
After wake from suspend network-manager can't find wifi network
https://bugs.launchpad.net/bugs/1323710
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