Description of problem:
im-chooser can launch imsettings-daemon and ibus-daemon and imsettings-daemon launches ibus-daemon again when user log into the Plasma Wayland session but ibus-ui-gtk3 fails to be launched because ibus-ui-gtk3 fails to open Display with XOpenDisplay(NULL) via imsettings-daemon while I confirmed ibus-ui-gtk3 got DISPLAY=:0 environment variable.

If I invoke ibus-daemon by manual ibus-daemon can launch ibus-ui-gtk3 successfully so this issue would be imsettings in Plasma Wayland.

Version-Release number of selected component (if applicable):
imsettings-1.8.2-4.fc35.x86_64
ibus-1.5.25-4.fc35.x86_64
plasma-workspace-wayland-5.22.5-2.fc35.x86_64

How reproducible:


Steps to Reproduce:
1. Log into Plasma Wayland session
2. Run im-chooser and select IBus and ibus-daemon runs
3. Log out the session and imsettings-daemon is still running
4. Log into Plasma Wayland session again

or

5. Run im-chooser again and select IBus -> No input method -> IBus

Actual results:
ibus-ui-gtk3 and ibus-x11 are not running and no IBus panel icon in the Plasma desktop


Expected results:
ibus-ui-gtk3 and ibus-x11 are running and users can switch IBus engines from IBus panel icon in the Plasma desktop


Additional info:
I'm thinking to launch imsettings-daemon from /usr/libexec/plasma-dbus-run-session-if-needed until Plasma Wayland can manage IBus input contexts with D-Bus likes GNOME Wayland so I'm fine to terminate imsettings-daemon by logging out the desktop session.

--- /usr/libexec/plasma-dbus-run-session-if-needed.orig07:11:14.936606871 +0900
+++ /usr/libexec/plasma-dbus-run-session-if-needed
@@ -2,6 +2,10 @@
 # Usage: plasma-dbus-run-session-if-needed PROGRAM [ARGUMENTS]
 # If the session bus is not available it is spawned and wrapper round our program
 # Otherwise we spawn our program directly
+if [ -x /usr/libexec/xinput-run-in-session ] ; then
+    nohup /usr/libexec/xinput-run-in-session &
+fi
+
 drs=
 if [ -z "${DBUS_SESSION_BUS_ADDRESS}" ]
 then


# cat /usr/libexec/xinput-run-in-session
#!/bin/sh

# Wait for running a desktop session with D-Bus
sleep 180

if [ -x /etc/X11/xinit/xinitrc.d/50-xinput.sh ] ; then
    /etc/X11/xinit/xinitrc.d/50-xinput.sh
    ibus exit
    imsettings-switch -n -q -x
fi