This is still a bug in Ubuntu 16.04. In my case, it comes from running a gui (synaptic package manager) as root inside a tiger vncserver session. It runs fine in the last vncserver it was run in, but from the real desktop console it conks out with the following error:
```root@ubuntu1604-p6720f:~# synaptic No protocol specified Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused (synaptic:23495): Gtk-WARNING **: cannot open display: :1 root@ubuntu1604-p6720f:~# DISPLAY=:0 synaptic No protocol specified Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused (synaptic:23624): Gtk-WARNING **: cannot open display: :0 root@ubuntu1604-p6720f:~# ``` As shown, even if I specify the exact display to open, it refuses to run in the main desktop. For whatever reason, Mir isn't running. I have no clue what that is. It also says "No protocol specified" -- is there a way to work around it by specifying a protocol? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1449748 Title: gedit can't run in root terminal To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1449748/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
