It's not a bug. SuperUser has no XDG_RUNTIME_DIR variable set. To fix it, replace sudo gedit call with pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY gedit
** Changed in: pam-xdg-support (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1330154 Title: sudo not working in ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pam-xdg-support/+bug/1330154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs