This message may mess up your interaction forms. I solved it by just killing the loop starting the screensaver, you find it in the process list when you open another ssh session. No harm done, upgrade continues as expected
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/881725 Title: "xset: unable to open display" while do-release-upgrade via ssh To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/881725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
