Current version of app-i18n/fcitx-qt5 in portage tree is 1.0.2, which isn't compatible with qt5.5. fcitx only work with gtk and qt4 applications, not application with qt5.5. This problem is fixed by upstream. Reproducible: Always Steps to Reproduce: 1.upgrade to latest kde plasma 5 desktop (enable ~amd64) 2.install app-i18n/fcitx-4.2.8.6 and app-i18n/fcitx-qt5-1.0.2 3.switch input method of fcitx Actual Results: only work with gtk and qt4 applications, not qt5.5 applications Expected Results: fcitx should work with all application This problem is already fixed by up stream in following commit: https://github.com/fcitx/fcitx-qt5/commit/78c482b3fdfe558da74657893a3bcd1ece6d7758 fcitx-qt5-1.0.3 and later contain the fix
Confirm this. The 1.0.4 ebuild from Gentoo-zh overlay works.
I have sent a github PR (https://github.com/gentoo/gentoo/pull/453) in which bumpped fcitx-qt5 and add added patch for fcitx-qt5-1.0.2. This bug will be fixed once the PR is merged.
many thanks to @all, pushed to portage tree.