I just researched it, and this is my understanding: The keyboard layout indicator in unity-greeter lists all the layouts for all users on the system. I suppose it grabs them from accountsservice. The indicator in lightdm-gtk-greeter shows the same list if it's enabled (not enabled by default).
The keyboard layout indicator in gdm3 only lists the layouts saved in /etc/default/keyboard. So strictly speaking, this is a gdm3 wishlist bug. OTOH, for a user who accomplish an upgrade from e.g. Ubuntu 17.04 (or, later, Ubuntu 16.04) it may be seen as a regression. In most cases it doesn't matter much, but it did for the reporter of this bug. It may be motivated to ask upstream why they don't make use of the information provided by accountsservice in the same way as unity-greeter does. ** Package changed: ubuntu-docs (Ubuntu) => gdm3 (Ubuntu) ** Changed in: gdm3 (Ubuntu) Status: Incomplete => Confirmed ** Summary changed: - Keyboard language + Keyboard language available on the login screen -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1725676 Title: Keyboard language available on the login screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1725676/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs