I've seen similar bugs before so think this might be a duplicate. I just can't find the other bugs right now.
Gianluca - Can you still reproduce the problem after you update your system? After updating, you should have Unity 5.14 or later. ** Also affects: unity Importance: Undecided Status: New ** Changed in: unity Status: New => Incomplete ** Changed in: unity (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/967452 Title: Application menu shadow on unity panel To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/967452/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs