I've noticed that the same thing happens when using Xubuntu (XFCE), which suggests that it's nothing to do with Unity but has something to do with the underlying layers in the window system. Since X is a networked window system, you may expect something like this to happen, but I don't remember seeing it until the last couple of years.
Once in the console I can use kill -9 to terminate X, but the graphical session manager doesn't restart automatically. In Xubuntu I'd guess that you need to restart lightdm if you want to avoid rebooting. -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1066374 Title: "/etc/init.d/networking restart" causes unity to crash (12.10 beta) Status in “unity” package in Ubuntu: Confirmed Bug description: I ran "/etc/init.d/networking restart" from the terminal and it appeared that Unity crashed as result. The launcher and the top panel disappeared. I was still able to right click on the desktop and get the context menu, the theme from my open chromium windows seems to have had resorted to a default theme of some sort and I wasn't able to type in the chromium window location bar. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1066374/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp

