I have reported on this issue before and I last experienced it in 14.04. I can confirm that my set-up is also two identical monitors; one connected via HDMI and another via DP. Contrary to some other affected users here, I used to have the problem in 14.04, but I do not seem to experience it after upgrading to 16.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1295267 Title: Windows change Monitor/Desktop after screen lock To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1295267/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs