Public bug reported:
I start my laptop, the network connects and I can use it well.
Then after some time (hours, or days) the WIFI disconnects and can't
connect to the network, nor any other WIFI network. The ethernet works
fine however.
There is a kworker process that hangs on CPU. NM asks me the WIFI key
several times, and does not success in connecting the network.
I then need to reboot my computer, as any "service network-manager
restart" or "service networking restart" does not work.
dmesg contains informations about an exception, I copied it in the
attached .txt . Those lines are repeated several times.
I think there are two bugs :
- One in the WIFI driver that prevents connecting to the network
- One in the network-manager that does not understand there is an internal bug
and keeps trying to reconnect, while asking me the keyphrase. NM should know
that the last connection failes because of an internal failure.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: network-manager 0.9.6.0-0ubuntu7
ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1
Uname: Linux 3.5.0-21-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
Date: Mon Jan 7 13:09:35 2013
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationDate: Installed on 2011-07-05 (551 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
IpRoute:
default via 192.168.1.254 dev wlan0 proto static
169.254.0.0/16 dev wlan0 scope link metric 1000
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.80 metric 9
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
MarkForUpload: True
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: Upgraded to quantal on 2012-10-23 (76 days ago)
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 0.9.6.0 connected enabled enabled
enabled enabled disabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug disconnection quantal running-unity wifi
** Attachment added: "stacktrace in dmesg when this happens"
https://bugs.launchpad.net/bugs/1096853/+attachment/3476056/+files/dmesg%20stacktrace.txt
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https://bugs.launchpad.net/bugs/1096853
Title:
WIFI disconnects then can not connect to any network
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