Your analysis is absolutely correct. On my system the whole directory /usr/share/im-config/data was missing. So I did "sudo apt install --reinstall im-config" as you suggested, and, behold, that directory was restored, including the two 78* files you mentioned. Then I removed my "return" at the top of /etc/profile.d/input-method-config.sh and logged out, and then logged in again -- no more error messages.
Thank you very much, Gunnar. You were very helpful and patient :) -- 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/1720250 Title: im-config configuration ignored with gdm3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1720250/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs