I tried somewhat more and it seem to behave this way for Firefox and Chrome:
Firefox - minimize a maximized window -> always white rectangle - minimize a smaller window -> never white rectangle Chrome - minimize a maximized window -> always white rectangle - minimize a smaller window -> every second try white rectangle -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/869628 Title: minimized windows - sometimes white rectangles are shown instead of window previews To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/869628/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
