I also have this issue with windows moving after unlock, on 16.04 with one screen connected via DisplayPort and another via HDMI. When I switch to both screens via HDMI (one via a thunderbolt/USB-C-to-HDMI adapter) the problem seems to go away.
This is on a Dell Precision 5510, with the nouveau and intel (i915_bpo) drivers for the nvidia and intel graphics respectively. -- 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