I also started experiencing this problem on 16.04, right after I had enabled “turn screen off when inactive” in the system settings. I have two identical Iiyama monitors, one of which is attached to the DVI port of the integrated Intel graphics, the other to the HDMI port.
-- 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