Hmm.. That's a mystery. Can you please run the following commands and show the complete output in a comment here:
locale cat /etc/default/locale cat ~/.pam_environment Also, can you recall that you have configured languages/locales manually somehow? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1778225 Title: Can't switch UI language for single users, only system-wide To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1778225/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs