После обновления случился сабж. Сетевой адаптер выключен, networkmanager работает. Помогает включение и назначение параметров IP через dhclient вручную, но KDE-шный апплет при этом показывает, что линка нет и в редакторе соединений нет возможности включить или выключить соединение.
root@valkeru-desktop:~# ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Локальная петля (Loopback))
RX packets 320 bytes 23680 (23.6 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 320 bytes 23680 (23.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@valkeru-desktop:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 10:bf:48:7e:0e:6f brd ff:ff:ff:ff:ff:ff
root@valkeru-desktop:~# /etc/init.d/network-manager status
● NetworkManager.service - Network Manager
Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
Active: active (running) since Чт 2017-01-05 17:54:26 MSK; 1min 42s ago
Docs: man:NetworkManager(8)
Main PID: 1093 (NetworkManager)
Tasks: 3 (limit: 4915)
CGroup: /system.slice/NetworkManager.service
└─1093 /usr/sbin/NetworkManager --no-daemon
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <info> [1483628066.8499] device (lo): link connected
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <info> [1483628066.8505] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <info> [1483628066.8516] manager: startup complete
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <info> [1483628066.8542] urfkill disappeared from the bus
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <info> [1483628066.8589] ofono is now available
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <warn> [1483628066.8593] failed to enumerate oFono devices: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
янв 05 17:54:26 valkeru-desktop NetworkManager[1093]: <info> [1483628066.8598] ModemManager available in the bus
янв 05 17:54:36 valkeru-desktop NetworkManager[1093]: <info> [1483628076.8730] manager: WiFi hardware radio set enabled
янв 05 17:54:36 valkeru-desktop NetworkManager[1093]: <info> [1483628076.8731] manager: WWAN hardware radio set enabled
root@valkeru-desktop:~# ifconfig enp2s0 up
root@valkeru-desktop:~# ifconfig
enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::12bf:48ff:fe7e:e6f prefixlen 64 scopeid 0x20<link>
ether 10:bf:48:7e:0e:6f txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 18 bytes 2348 (2.3 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Локальная петля (Loopback))
RX packets 323 bytes 24007 (24.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 323 bytes 24007 (24.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@valkeru-desktop:~# dhclient enp2s0
root@valkeru-desktop:~# ifconfig
enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.200.1.2 netmask 255.0.0.0 broadcast 10.255.255.255
inet6 fe80::12bf:48ff:fe7e:e6f prefixlen 64 scopeid 0x20<link>
ether 10:bf:48:7e:0e:6f txqueuelen 1000 (Ethernet)
RX packets 7 bytes 1165 (1.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 42 bytes 5557 (5.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Локальная петля (Loopback))
RX packets 327 bytes 24287 (24.2 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 327 bytes 24287 (24.2 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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libwebkit2gtk-4.0-37-gtk2:amd64 (2.14.1-0ubuntu1, 2.14.2-0ubuntu1)
plasma-widgets-addons:amd64 (4:5.8.4-0ubuntu1~ubuntu16.10~ppa1, 4:5.8.5-0ubuntu1~ubuntu16.10~ppa1)
libweather-ion7:amd64 (4:5.8.4-0ubuntu1~ubuntu16.10~ppa1, 4:5.8.5-0ubuntu2~ubuntu16.10~ppa2)