My system did not have crash files for the problem reported, and number 2 and 3 options did not work. The workaround did not enable crash reports.
Rather than diving into the rabbit hole, I upgraded to 20.04 LTS, knowing that the network manager would be replaced by the new one, using ip instead of ifconfig. The upgrade went smoothly and networking is now working again as expected. -- 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/1888996 Title: NetworkManager crashes with segfault after July 2020 updates Status in network-manager package in Ubuntu: Invalid Bug description: Ubuntu 18.04 upgraded from 16.04 in 2018. System was working fine until latest batch of updates/patches. PC boots up without issues, but there is no network when desktop appears. dmesg does not show any problems related to network. It appears network simply does not attempt to start. When trying to start network-manager manually, it crashes with segfault. Network does start manually with: sudo ip link set dev eno1 up Followed by: sudo dhclient -v eno1 NetworkManager applets say "something went wrong" Output of lsb_release -rd: Description: Ubuntu 18.04.4 LTS Release: 18.04 Output of apt-cache policy pkgname: network-manager: Installed: 1.10.6-2ubuntu1.4 Candidate: 1.10.6-2ubuntu1.4 Version table: *** 1.10.6-2ubuntu1.4 500 500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.10.6-2ubuntu1.1 500 500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages 1.10.6-2ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages What I expected to happen: System should boot up normally and have network available, via DHCP What happened instead: System boots up, network is not configured, there are no errors, but NetworkManager crashes upon manual start. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1888996/+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
