I suspect that's also the reason why the panel drop shadow isn't visible in certain multimonitor configurations, the shadow is probably drawn beneath the panel where it isn't visible:
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/815794 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/825219 Title: Window opened on secondary monitor gets opened beneath unity panel To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/825219/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
