At least some of my issue was triggered by a yet unfixed NIS/systemd bug. systemd-logind would hang (and watchdog kicks in) if it tried to contact the NIS service because of a new IP firewall they implemented. I don't think this was entirely all of my problems but it certainly confused the issue.
See https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1745664 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1543192 Title: Xorg crashed with SIGABRT in OsAbort() from AbortServer() from FatalError() from dix_main() ["no screens found"] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1543192/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
