I still have this problem on 12.04: lev@darwin:~$ lsb_release -d Description: Ubuntu 12.04 LTS lev@darwin:~$ synaptic-pkexec No protocol specified No protocol specified
(synaptic:12421): Gtk-WARNING **: cannot open display: :0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/829099 Title: synaptic-pkexec fails: cannot open display 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/829099/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs