@Hachmann: Yeah, it seems to be related to XIM, and several users have reported that switching to input method IBus (or "none") fixes it.
Has anybody tried to make XIM work by simply removing the cache in ~/.cache/<application>? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libx11 in Ubuntu. https://bugs.launchpad.net/bugs/1573755 Title: Compose and dead keys stopped working with XIM after upgrade to 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1573755/+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