Also in Kubuntu 20.04 with KDE Plasma 5.18.5. Editing of /etc/default/locale, then restart, fixed issue.
-- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to kde-runtime in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/1322968 Title: Changing country leads to invalid locale Status in kde-runtime package in Ubuntu: Confirmed Bug description: New installation of Kubuntu 14.04 and upgraded via kubuntu-ppa. Initially, country is set to "United States". The locale settings are the following: ~/.kde/env$ cat setlocale.sh export LANG=en_US.UTF-8 export LANGUAGE=en:el:en export LC_NUMERIC=en_US.UTF-8 export LC_TIME=en_US.UTF-8 export LC_MONETARY=en_US.UTF-8 export LC_PAPER=en_US.UTF-8 export LC_IDENTIFICATION=en_US.UTF-8 export LC_NAME=en_US.UTF-8 export LC_ADDRESS=en_US.UTF-8 export LC_TELEPHONE=en_US.UTF-8 export LC_MEASUREMENT=en_US.UTF-8 Then, I change Country to Greece, via System Settings. Locale changes as follows: export LANG=en_GR.UTF-8 export LANGUAGE=en:el:en export LC_NUMERIC=en_GR.UTF-8 export LC_TIME=en_GR.UTF-8 export LC_MONETARY=en_GR.UTF-8 export LC_PAPER=en_GR.UTF-8 export LC_IDENTIFICATION=en_GR.UTF-8 export LC_NAME=en_GR.UTF-8 export LC_ADDRESS=en_GR.UTF-8 export LC_TELEPHONE=en_GR.UTF-8 export LC_MEASUREMENT=en_GR.UTF-8 As far as I know, en_GR.UTF-8 is not a valid entry. A severe loss of functionality is that accents cannot be set properly to greek vowels. Changing manually setlocale.sh to: export LANG=el_GR.UTF-8 export LANGUAGE=en:el:en export LC_NUMERIC=el_GR.UTF-8 export LC_TIME=el_GR.UTF-8 export LC_MONETARY=el_GR.UTF-8 export LC_PAPER=el_GR.UTF-8 export LC_IDENTIFICATION=el_GR.UTF-8 export LC_NAME=el_GR.UTF-8 export LC_ADDRESS=el_GR.UTF-8 export LC_TELEPHONE=el_GR.UTF-8 export LC_MEASUREMENT=el_GR.UTF-8 solves the issue. My version: Qt: 4.8.6 KDE Development Platform: 4.13.1 KDE Daemon: 4.13.1 No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04 LTS Release: 14.04 Codename: trusty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kde-runtime/+bug/1322968/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp