[Bug 2131673] New: Default GTK_IM_MODULE should be ibus in GNOME Xorg

https://bugzilla.redhat.com/show_bug.cgi?id=2131673

            Bug ID: 2131673
           Summary: Default GTK_IM_MODULE should be ibus in GNOME Xorg
           Product: Fedora
           Version: 37
            Status: NEW
        Whiteboard: AcceptedFreezeException
         Component: imsettings
          Assignee: tagoh(a)redhat.com
          Reporter: tfujiwar(a)redhat.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: awilliam(a)redhat.com, bcotton(a)redhat.com,
                    extras-qa(a)fedoraproject.org, fmuellner(a)redhat.com,
                    gnome-sig(a)lists.fedoraproject.org,
                    i18n-bugs(a)lists.fedoraproject.org, klember(a)redhat.com,
                    mkasik(a)redhat.com, ofourdan(a)redhat.com,
                    robatino(a)fedoraproject.org, rstrode(a)redhat.com,
                    tagoh(a)redhat.com, tiagomatos(a)gmail.com,
                    yaneti(a)declera.com
        Depends On: 2128423
            Blocks: 2009539 (F37FinalBlocker,FinalBlocker), 2009540
                    (F37FinalFreezeException,FinalFreezeException)
  Target Milestone: ---
    Classification: Fedora



+++ This bug was initially created as a clone of Bug #2128423 +++

Now GNOME Xorg sets GTK_IM_MODULE to "ibus" in some Asian locales using
/etc/X11/xinit/xinitrc.d/50-xinput.sh but "gtk-im-context-simple" in other
locales.

But previously GNOME Xorg sets GTK_IM_MODULE to "ibus" in all locales.

Probably a GNOME desktop module always can set the default GTK_IM_MODULE in
GNOME Xorg.

To reproduce:
1. Log into GNOME Xorg in en_US.UTF-8 locale
2. Run `ibus im-module`
"gtk-im-context-simple" is output.

Expected result:
"ibus" is output.

Note: GTK_IM_MODULE="wayland" in GNOME Wayland by default now

--- Additional comment from Jens Petersen on 2022-09-29 03:27:49 UTC ---

This means in particular that if you try to add a first input method in
gnome-control-center
you need to restart gnome in order for it to work properly, which is not a
great experience
(unlike in Wayland where the input method just works immediately).

Strictly speaking this regression started actually in F36 (Gnome 42) I believe.
But we feel it is actually a potential blocker bug.

Though this is not resolved yet upstream.



Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=2009539
[Bug 2009539] Fedora 37 Final blocker bug tracker
https://bugzilla.redhat.com/show_bug.cgi?id=2009540
[Bug 2009540] Fedora 37 Final freeze exception bug tracker
https://bugzilla.redhat.com/show_bug.cgi?id=2128423
[Bug 2128423] Default GTK_IM_MODULE should be ibus in GNOME Xorg
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https://bugzilla.redhat.com/show_bug.cgi?id=2131673