Thanks for your report. It seems to be an intentional upstream change of the basic German layout:
https://cgit.freedesktop.org/xkeyboard- config/commit/symbols/de?id=49129c63 So it's not a bug. The good news is that the "German (dead tilde)" layout variant provides the behavior you prefer. ** Changed in: xkeyboard-config (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xkeyboard-config in Ubuntu. https://bugs.launchpad.net/bugs/1768556 Title: Tilde/macron is no longer a dead key on German keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xkeyboard-config/+bug/1768556/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp