I can't remember if mirror mode is the expected default for when the system doesn't recognise a set of monitors. If it's not the default then it would be harder to explain...
Did you try comment #3? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2075525 Title: After screen blank, the displays configuration gets lost To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2075525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs