The issue is indeed due to ibus changes, see https://github.com/ibus/ibus/issues/1961
Basically they added an emoji picker (which you can start with "ibus emoji") and make that displayed with ctrl-shift-e (in 1.5.18) and deprecated ctrl-shift-u since that can conflicts with some applications keybinding. Updating to .18 would give us the new picker but not the old feature back, I'm pondering distro patching that simple change that has been proposed upstream bug rejected https://github.com/ibus/ibus/issues/1962 ** Bug watch added: github.com/ibus/ibus/issues #1961 https://github.com/ibus/ibus/issues/1961 ** Also affects: ibus via https://github.com/ibus/ibus/issues/1961 Importance: Unknown Status: Unknown ** Bug watch added: github.com/ibus/ibus/issues #1962 https://github.com/ibus/ibus/issues/1962 ** Changed in: ibus (Ubuntu Bionic) Importance: Undecided => High ** Changed in: ibus (Ubuntu Bionic) Status: Confirmed => In Progress ** Bug watch added: github.com/ibus/ibus/issues #1981 https://github.com/ibus/ibus/issues/1981 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1760308 Title: Unicode input not working on Bionic with CTRL-SHIFT-U To manage notifications about this bug go to: https://bugs.launchpad.net/ibus/+bug/1760308/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
