I can reproduce the issue on focal but not on groovy. I installed the groovy version of the ibus binaries on focal, but the issue was still present, so this seems not to be an ibus bug.
I can type ü with a German keyboard layout, so it seems to be about dead keys rather than accented letters as such. Furthermore, I can't input e.g. Chinese characters using IBus at all. ** Changed in: gnome-shell (Ubuntu) Importance: Undecided => Medium ** Changed in: gnome-shell (Ubuntu) Status: Incomplete => Confirmed ** Changed in: ibus (Ubuntu) Status: Incomplete => Invalid ** Summary changed: - Can't input accents in GNOME shell + Can't use dead keys or input e.g. Chinese characters in GNOME shell -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ibus in Ubuntu. https://bugs.launchpad.net/bugs/1900906 Title: Can't use dead keys or input e.g. Chinese characters in GNOME shell Status in gnome-shell package in Ubuntu: Confirmed Status in ibus package in Ubuntu: Invalid Bug description: I'm running an up-to-date Ubuntu Focal. I have a standard Spanish keyboard. Under X, if I try to input an accentuated character, such as á or ü, in places like the search field in the overview or when writing a folder name in the app grid, nothing appears. Under Wayland, it fails each time on the first input of an accentuated character, then it works. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-05-01 (174 days ago) InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1) Package: ibus PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65 RelatedPackageVersions: mutter-common 3.36.6-1ubuntu0.20.04.2 Tags: focal Uname: Linux 5.4.0-52-generic x86_64 UpgradeStatus: Upgraded to focal on 2020-09-29 (22 days ago) UserGroups: sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1900906/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp