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Description of problem:
/etc/X11/xinit/xinput.d/ibus.conf only checks for qt4 immodule not qt5.
Hence if ibus-qt is not installed but qt5 is, ibus fallbacks back to XIM,
which I couldn't get to work with the (nonfree) qt5 app I tried.

Version-Release number of selected component (if applicable):
ibus-1.5.17-2.el7

How reproducible:
100%

Steps to Reproduce:
1. install qt5-qtbase-gui-5.9.2-3.el7
2. try to use ibus in qt5 app

Actual results:
IM seems not working

Expected results:
ibus working normally

Additional info:
Workaround is to install ibus-qt and restart desktop.

/etc/X11/xinit/xinput.d/ibus.conf needs to be copied from Fedora to RHEL 7:
https://src.fedoraproject.org/rpms/ibus/blob/master/f/ibus-xinput

qt5-qtbase was not available in RHEL 7.0 but it's available in the latest 7.y and ibus.conf also needs to be updated.

I don't think this is a high priority. You can export QT_IM_MODULE=ibus by manual.

I don't think the current sublime works with ibus but I think sublime has to be rebuilt to be able to load Qt IM modules.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:2251