I can confirm that this is still present in 16.04. I did a clean install and as soon as screens go blank and enter the power savings mode windows will semi-randomly displace around the workspaces. I have one screen on Display Port and the other on DVI. Dell P2715Q doesn't have DVI ports so I can't test what happens if I connect it to DVI.
-- 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