As noted in my comment to #178402, you need to change /etc/default/locale: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/178402/comments/28
As noted in my comment to #178402, you need to change /etc/default/ locale: https:/ /bugs.launchpad .net/ubuntu/ +source/ gdm/+bug/ 178402/ comments/ 28