Here is what I did to solve a similar problem (german layout): I reset the whole gnome config (dconf reset -f /org/gnome/), changed the layout to "de" and then back to "ch-de". Now it works as expected.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1652618 Title: Impossible to unlock the screen when using non-English language To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1652618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs