For me, the behaviour is completely the opposite of those reported by others:
Apps with Compose key working: - Gnome Terminal, Dash search field Apps with Compose key ineffective - Gedit, LibreOffice, Chrome, Firefox But when creating a new user and copying my .XCompose to him, for that user the Compose key works in all applications. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ibus in Ubuntu. https://bugs.launchpad.net/bugs/1573755 Title: Compose and dead keys stopped working with XIM after upgrade to 16.04 Status in firefox package in Ubuntu: Invalid Status in gnome-terminal package in Ubuntu: Invalid Status in ibus package in Ubuntu: Confirmed Status in libx11 package in Ubuntu: Confirmed Status in nautilus package in Ubuntu: Invalid Status in thunderbird package in Ubuntu: Invalid Status in xkeyboard-config package in Ubuntu: Confirmed Bug description: After upgrading to 16.04, entering characters using dead keys and using the Compose key stopped working in Gnome Terminal, acting like they are normal (non-dead) keys. Other applications, even those who use the same libvte (e.g. ROXTerm), don't have this issue. This happens with both the "Belgian" and "English international with AltGr dead keys" layouts. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: gnome-terminal 3.18.3-1ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Fri Apr 22 20:45:33 2016 InstallationDate: Installed on 2013-12-16 (857 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) SourcePackage: gnome-terminal UpgradeStatus: Upgraded to xenial on 2016-04-22 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1573755/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp