In addition check ownership of the Xauthority file for the main-user: ls -ldh /home/$USER/.Xauthority
Report result. ** Changed in: kubuntu-meta (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1441162 Title: cannot execute sudo permissions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1441162/+subscriptions -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs