Public bug reported: I have a problem with wired connection while connected in docking station on startup after update from Ubuntu 18.04 to 18.10.
HW info: Manufacturer: LENOVO Product Name: 20HGS27000 Version: ThinkPad T470s Serial Number: PC0MJA2W BIOS Version: N1WET51W (Release Date: 09/14/2018) System info: $ lsb_release -rd Description: Ubuntu 18.10 Release: 18.10 $ apt-cache policy network-manager network-manager: Installed: 1.12.4-1ubuntu1 Candidate: 1.12.4-1ubuntu1 Version table: *** 1.12.4-1ubuntu1 500 500 http://sk.archive.ubuntu.com/ubuntu cosmic/main amd64 Packages 100 /var/lib/dpkg/status $ uname -a Linux citadel 4.18.0-10-generic #11-Ubuntu SMP Thu Oct 11 15:13:55 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Steps to reproduce: 1. Update Ubuntu from 18.04 to 18.10 2. Start the laptop on docking station 3. Laptop is trying to connect automatically on wired connection after startup, but not successfully. Log: $ journalctl -u NetworkManager nov 02 07:34:30 citadel NetworkManager[1158]: <info> [1541140470.6335] device (enp0s31f6): state change: ip-config -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:30 citadel NetworkManager[1158]: <info> [1541140470.6979] dhcp4 (enp0s31f6): canceled DHCP transaction, DHCP client pid 3447 nov 02 07:34:30 citadel NetworkManager[1158]: <info> [1541140470.6979] dhcp4 (enp0s31f6): state changed unknown -> done nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3778] device (enp0s31f6): carrier: link connected nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3780] device (enp0s31f6): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3787] policy: auto-activating connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3797] device (enp0s31f6): Activation: starting connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3799] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4719] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4725] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4728] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds) nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4778] dhcp4 (enp0s31f6): dhclient started with pid 3689 nov 02 07:34:32 citadel dhclient[3689]: DHCPREQUEST of 10.10.20.214 on enp0s31f6 to 255.255.255.255 port 67 (xid=0x687f173) nov 02 07:34:35 citadel dhclient[3689]: DHCPREQUEST of 10.10.20.214 on enp0s31f6 to 255.255.255.255 port 67 (xid=0x687f173) nov 02 07:34:38 citadel NetworkManager[1158]: <info> [1541140478.4738] device (enp0s31f6): state change: ip-config -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:38 citadel NetworkManager[1158]: <info> [1541140478.5066] dhcp4 (enp0s31f6): canceled DHCP transaction, DHCP client pid 3689 nov 02 07:34:38 citadel NetworkManager[1158]: <info> [1541140478.5067] dhcp4 (enp0s31f6): state changed unknown -> done nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2266] device (enp0s31f6): carrier: link connected nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2273] device (enp0s31f6): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2298] policy: auto-activating connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2354] device (enp0s31f6): Activation: starting connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2361] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3299] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3315] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3319] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds) nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3340] dhcp4 (enp0s31f6): dhclient started with pid 3739 nov 02 07:34:40 citadel dhclient[3739]: DHCPREQUEST of 10.10.20.214 on enp0s31f6 to 255.255.255.255 port 67 (xid=0x6ae6d0ef) Workaround: - Reconnect the wired connection manually or restart network manager - it is OK to do it for couple times but after each start it gets annoying Previously installed working versions: Ubuntu: 18.04 Linux kernel: 4.15.0-38-generic Network Manager: 1.10.6-2ubuntu1 ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: connection kernel linux-image network network-manager wired -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1801302 Title: Disconnected wired connection on dock after startup - reason 'carrier- changed' after update to 18.10 Status in network-manager package in Ubuntu: New Bug description: I have a problem with wired connection while connected in docking station on startup after update from Ubuntu 18.04 to 18.10. HW info: Manufacturer: LENOVO Product Name: 20HGS27000 Version: ThinkPad T470s Serial Number: PC0MJA2W BIOS Version: N1WET51W (Release Date: 09/14/2018) System info: $ lsb_release -rd Description: Ubuntu 18.10 Release: 18.10 $ apt-cache policy network-manager network-manager: Installed: 1.12.4-1ubuntu1 Candidate: 1.12.4-1ubuntu1 Version table: *** 1.12.4-1ubuntu1 500 500 http://sk.archive.ubuntu.com/ubuntu cosmic/main amd64 Packages 100 /var/lib/dpkg/status $ uname -a Linux citadel 4.18.0-10-generic #11-Ubuntu SMP Thu Oct 11 15:13:55 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Steps to reproduce: 1. Update Ubuntu from 18.04 to 18.10 2. Start the laptop on docking station 3. Laptop is trying to connect automatically on wired connection after startup, but not successfully. Log: $ journalctl -u NetworkManager nov 02 07:34:30 citadel NetworkManager[1158]: <info> [1541140470.6335] device (enp0s31f6): state change: ip-config -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:30 citadel NetworkManager[1158]: <info> [1541140470.6979] dhcp4 (enp0s31f6): canceled DHCP transaction, DHCP client pid 3447 nov 02 07:34:30 citadel NetworkManager[1158]: <info> [1541140470.6979] dhcp4 (enp0s31f6): state changed unknown -> done nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3778] device (enp0s31f6): carrier: link connected nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3780] device (enp0s31f6): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3787] policy: auto-activating connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3797] device (enp0s31f6): Activation: starting connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.3799] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4719] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4725] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4728] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds) nov 02 07:34:32 citadel NetworkManager[1158]: <info> [1541140472.4778] dhcp4 (enp0s31f6): dhclient started with pid 3689 nov 02 07:34:32 citadel dhclient[3689]: DHCPREQUEST of 10.10.20.214 on enp0s31f6 to 255.255.255.255 port 67 (xid=0x687f173) nov 02 07:34:35 citadel dhclient[3689]: DHCPREQUEST of 10.10.20.214 on enp0s31f6 to 255.255.255.255 port 67 (xid=0x687f173) nov 02 07:34:38 citadel NetworkManager[1158]: <info> [1541140478.4738] device (enp0s31f6): state change: ip-config -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:38 citadel NetworkManager[1158]: <info> [1541140478.5066] dhcp4 (enp0s31f6): canceled DHCP transaction, DHCP client pid 3689 nov 02 07:34:38 citadel NetworkManager[1158]: <info> [1541140478.5067] dhcp4 (enp0s31f6): state changed unknown -> done nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2266] device (enp0s31f6): carrier: link connected nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2273] device (enp0s31f6): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2298] policy: auto-activating connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2354] device (enp0s31f6): Activation: starting connection 'Wired connection' (9a6bb9a9-2739-4bdc-b853-0eec29c6e42d) nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.2361] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3299] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3315] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed') nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3319] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds) nov 02 07:34:40 citadel NetworkManager[1158]: <info> [1541140480.3340] dhcp4 (enp0s31f6): dhclient started with pid 3739 nov 02 07:34:40 citadel dhclient[3739]: DHCPREQUEST of 10.10.20.214 on enp0s31f6 to 255.255.255.255 port 67 (xid=0x6ae6d0ef) Workaround: - Reconnect the wired connection manually or restart network manager - it is OK to do it for couple times but after each start it gets annoying Previously installed working versions: Ubuntu: 18.04 Linux kernel: 4.15.0-38-generic Network Manager: 1.10.6-2ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1801302/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp