I've just experienced the same bug this morning with snapped Chromium, fixed with `ibus exit`:
$ snap info chromium name: chromium summary: Chromium web browser, open-source version of Chrome publisher: Canonical✓ store-url: https://snapcraft.io/chromium contact: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bugs?field.tag=snap license: unset description: | An open-source browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. commands: - chromium.chromedriver - chromium snap-id: XKEcBqPM06H1Z7zGOdG5fbICuf8NWK5R tracking: latest/stable refresh-date: 5 days ago, at 14:13 GMT channels: stable: 80.0.3987.100 2020-02-12 (1026) 160MB - candidate: 80.0.3987.100 2020-02-12 (1026) 160MB - beta: 80.0.3987.85 2020-02-04 (1014) 160MB - edge: 81.0.4044.17 2020-02-14 (1028) 161MB - installed: 80.0.3987.100 (1026) 160MB - $ env | grep IM_ CLUTTER_IM_MODULE=ibus GTK_IM_MODULE=ibus IM_CONFIG_PHASE=1 QT4_IM_MODULE=ibus QT_IM_MODULE=ibus $ uname -a Linux morwanneg 5.4.0-14-generic #17-Ubuntu SMP Thu Feb 6 22:47:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Focal Fossa (development branch) Release: 20.04 Codename: focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1307648 Title: chromium-browser does not accept keyboard input with iBus To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1307648/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs