--- /etc/X11/xinit/xinput.d/ibus.conf.orig	2015-04-30 19:03:45.893104474 +0900
+++ /etc/X11/xinit/xinput.d/ibus.conf	2015-04-30 19:05:39.723361849 +0900
@@ -7,8 +7,10 @@ SHORT_DESC="IBus"
 GTK_IM_MODULE=ibus
 NOT_RUN=gnome3
 
-if test -f /usr/lib/qt4/plugins/inputmethods/libqtim-ibus.so || \
-   test -f /usr/lib64/qt4/plugins/inputmethods/libqtim-ibus.so;
+if test -f /usr/lib64/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so || \
+   test -f /usr/lib/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so || \
+   test -f /usr/lib64/qt4/plugins/inputmethods/libqtim-ibus.so || \
+   test -f /usr/lib/qt4/plugins/inputmethods/libqtim-ibus.so;
 then
     QT_IM_MODULE=ibus
 else

ibus-1.5.10-4.fc22 has been submitted as an update for Fedora 22.
https://admin.fedoraproject.org/updates/FEDORA-2015-7032/ibus-1.5.10-4.fc22

ibus-1.5.10-3.fc21 has been submitted as an update for Fedora 21.
https://admin.fedoraproject.org/updates/FEDORA-2015-7062/ibus-1.5.10-3.fc21

ibus-1.5.10-3.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/FEDORA-2015-7065/ibus-1.5.10-3.fc20

Package ibus-1.5.10-4.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing ibus-1.5.10-4.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2015-7065/ibus-1.5.10-4.fc20
then log in and leave karma (feedback).

ibus-1.5.10-4.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

ibus-1.5.10-4.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

ibus-1.5.10-4.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.