** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1607571
Title:
No network devices after suspend and resume
Status in linux package in Ubuntu:
Confirmed
Bug description:
I'm on an Alienware 17R3 on Ubuntu 16.04.
The wifi stops working after resume. The problem seems related to
https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1422143, but the
solutions proposed there doesn't work. Other seems to have a problem
related with the network-manager stop working (like
http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-
after-16-04-upgrade).
However, in my case the network-manager restarts and stops after the
resume. However, there is no device, and thus there is no list of
available networks to join.
For example, doing
$ iwconfig
lo no wireless extensions.
while in a normal reboot the wireless card information is printed
$ iwconfig
wlp60s0 IEEE 802.11abgn ESSID:"Chapinlandia"
Mode:Managed Frequency:2.412 GHz Access Point: 8C:04:FF:F6:90:9E
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=51/70 Signal level=-59 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:36 Invalid misc:39 Missed beacon:0
lo no wireless extensions.
enp59s0 no wireless extensions.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: adin 3934 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Jul 28 21:05:44 2016
HibernationDevice: RESUME=UUID=c0bba13c-6fa5-4545-a7ee-cd58b1e6e3bd
InstallationDate: Installed on 2016-07-03 (25 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
MachineType: Alienware Alienware 17 R3
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed
root=UUID=dc6d8cac-eff1-4dce-97fd-949d7268d2d9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-31-generic N/A
linux-backports-modules-4.4.0-31-generic N/A
linux-firmware 1.157.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/11/2015
dmi.bios.vendor: Alienware
dmi.bios.version: 1.2.3
dmi.board.name: Alienware 17 R3
dmi.board.vendor: Alienware
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Alienware
dmi.chassis.version: Not Specified
dmi.modalias:
dmi:bvnAlienware:bvr1.2.3:bd11/11/2015:svnAlienware:pnAlienware17R3:pvr1.2.3:rvnAlienware:rnAlienware17R3:rvrA00:cvnAlienware:ct10:cvrNotSpecified:
dmi.product.name: Alienware 17 R3
dmi.product.version: 1.2.3
dmi.sys.vendor: Alienware
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