Journalctl lines relevant to this bug, using a PCI connected wifi card that did NOT come up:
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (lo): new Generic device (driver: 'unknown'
ubuntu NetworkManager[1378]: <info> WiFi hardware radio set enabled
Feb 11 13:26:36 ubuntu NetworkManager[1378]: <info> WWAN hardware radio set disabled
Feb 11 13:28:13 ubuntu systemd[1]: [/lib/systemd/system/ifup@.service:14] Trailing garbage, ignoring.
6 ubuntu ModemManager[1373]: <info> ModemManager (version 1.4.0) starting in sys
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> NetworkManager (version 0.9.10.0) is starti
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Read config: /etc/NetworkManager/NetworkMan
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> WEXT support is enabled
Feb 11 13:26:26 ubuntu kernel: cfg80211: World regulatory domain updated:
Feb 11 13:26:26 ubuntu kernel: cfg80211: DFS Master region: unset
Feb 11 13:26:26 ubuntu kernel: cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_ga
Feb 11 13:26:26 ubuntu kernel: cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> init!
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> update_system_hostname
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> interface-parser: parsing file /etc/n
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> interface-parser: finished parsing fi
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> management mode: unmanaged
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> devices added (path: /sys/devices/pci0000:0
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> device added (path: /sys/devices/pci0000:00
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> devices added (path: /sys/devices/virtual/n
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> device added (path: /sys/devices/virtual/ne
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> end _init.
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Loaded plugin ifupdown: (C) 2008 Canonical
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Loaded plugin keyfile: (c) 2007 - 2013 Red
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (31315200) ... get_connections.
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (31315200) ... get_connections (managed=fal
Feb 11 13:26:26 ubuntu sshd[1453]: Server listening on 0.0.0.0 port 22.
Feb 11 13:26:26 ubuntu sshd[1453]: Server listening on :: port 22.
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <warn> error in connection /etc/NetworkManager
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> new connection /etc/NetworkManager/system-c
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> get unmanaged devices count: 0
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> monitoring kernel firmware directory '/lib/
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> monitoring ifupdown state file '/run/networ
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Loaded device plugin: /usr/lib/x86_64-linux
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Loaded device plugin: /usr/lib/x86_64-linux
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Loaded device plugin: /usr/lib/x86_64-linux
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Loaded device plugin: /usr/lib/x86_64-linux
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> WiFi enabled by radio killswitch; enabled b
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> WWAN enabled by radio killswitch; disabled
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> WiMAX enabled by radio killswitch; enabled
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> Networking is enabled by state file
Feb 11 13:26:26 ubuntu NetworkManager[1378]: nm_device_get_device_type: assertion 'NM_IS_DEVICE
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (lo): link connected
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (lo): carrier is ON
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (lo): new Generic device (driver: 'unknown'
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (lo): exported as /org/freedesktop/NetworkM
Feb 11 13:26:26 ubuntu NetworkManager[1378]: nm_device_get_device_type: assertion 'NM_IS_DEVICE
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (eth3): carrier is OFF
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (eth3): new Ethernet device (driver: 'r8169
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (eth3): exported as /org/freedesktop/Networ
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (eth3): device state change: unmanaged -> u
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> (eth3): preparing device
Feb 11 13:26:26 ubuntu NetworkManager[1378]: <info> urfkill disappeared from the bus
Journalctl lines relevant to this bug, using a PCI connected wifi card that did NOT come up:
Feb 11 13:26:26 ubuntu NetworkManager[ 1378]: <info> (lo): new Generic device (driver: 'unknown'
ubuntu NetworkManager[ 1378]: <info> WiFi hardware radio set enabled 1378]: <info> WWAN hardware radio set disabled
Feb 11 13:26:36 ubuntu NetworkManager[
Feb 11 13:28:13 ubuntu systemd[1]: [/lib/systemd/ system/ ifup@.service: 14] Trailing garbage, ignoring.
6 ubuntu ModemManager[1373]: <info> ModemManager (version 1.4.0) starting in sys 1378]: <info> NetworkManager (version 0.9.10.0) is starti 1378]: <info> Read config: /etc/NetworkMan ager/NetworkMan 1378]: <info> WEXT support is enabled
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu kernel: cfg80211: World regulatory domain updated: 1378]: <info> init! 1378]: <info> update_ system_ hostname 1378]: <info> interface-parser: parsing file /etc/n 1378]: <info> interface-parser: finished parsing fi 1378]: <info> management mode: unmanaged 1378]: <info> devices added (path: /sys/devices/ pci0000: 0 1378]: <info> device added (path: /sys/devices/ pci0000: 00 1378]: <info> devices added (path: /sys/devices/ virtual/ n 1378]: <info> device added (path: /sys/devices/ virtual/ ne 1378]: <info> end _init. 1378]: <info> Loaded plugin ifupdown: (C) 2008 Canonical 1378]: <info> Loaded plugin keyfile: (c) 2007 - 2013 Red 1378]: <info> (31315200) ... get_connections. 1378]: <info> (31315200) ... get_connections (managed=fal 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <warn> error in connection /etc/NetworkManager 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <info> new connection /etc/NetworkMan ager/system- c 1378]: <info> get unmanaged devices count: 0 1378]: <info> monitoring kernel firmware directory '/lib/ 1378]: <info> monitoring ifupdown state file '/run/networ 1378]: <info> Loaded device plugin: /usr/lib/ x86_64- linux 1378]: <info> Loaded device plugin: /usr/lib/ x86_64- linux 1378]: <info> Loaded device plugin: /usr/lib/ x86_64- linux 1378]: <info> Loaded device plugin: /usr/lib/ x86_64- linux 1378]: <info> WiFi enabled by radio killswitch; enabled b 1378]: <info> WWAN enabled by radio killswitch; disabled 1378]: <info> WiMAX enabled by radio killswitch; enabled 1378]: <info> Networking is enabled by state file 1378]: nm_device_ get_device_ type: assertion 'NM_IS_DEVICE 1378]: <info> (lo): link connected 1378]: <info> (lo): carrier is ON 1378]: <info> (lo): new Generic device (driver: 'unknown' 1378]: <info> (lo): exported as /org/freedeskto p/NetworkM 1378]: nm_device_ get_device_ type: assertion 'NM_IS_DEVICE 1378]: <info> (eth3): carrier is OFF 1378]: <info> (eth3): new Ethernet device (driver: 'r8169 1378]: <info> (eth3): exported as /org/freedeskto p/Networ 1378]: <info> (eth3): device state change: unmanaged -> u 1378]: <info> (eth3): preparing device 1378]: <info> urfkill disappeared from the bus
Feb 11 13:26:26 ubuntu kernel: cfg80211: DFS Master region: unset
Feb 11 13:26:26 ubuntu kernel: cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_ga
Feb 11 13:26:26 ubuntu kernel: cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu kernel: cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu sshd[1453]: Server listening on 0.0.0.0 port 22.
Feb 11 13:26:26 ubuntu sshd[1453]: Server listening on :: port 22.
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[
Feb 11 13:26:26 ubuntu NetworkManager[