[Bug]: Unable to trigger input method (ibus, fcitx, etc.) from physical keyboard and soft keyboard

[FurryR]

Problem description

I am trying to configure ibus for my proot environment for a portable development station, and I noticed that the keyboard input does not trigger the input method. That means that there are literally no ways to input CJK characters in termux-x11 and I have to use tigervnc for alternative (which has no graphic acceleration).

What steps will reproduce the bug?

1. Start a Termux X11 server & xfce4 session (for example) as usual.
2. Install ibus, then ibus-pinyin (for test).
3. In terminal, type ibus start, and you will see a keyboard tray icon.
4. Configure ibus to add Chinese input（or Japanese input, if provided).
5. Restart ibus once, then switch to Chinese input and type something.

What is the expected behavior?

I expect that the input could be intercepted by the input method correctly.

[twaik]

Do you use hardware keyboard? Use the Prefer scancodes when possible switch in preferences.

[twaik]

Did it work?

[twaik]

Closing due to the lack of activity.

[Biswa96]

Similar issue has been reported in termux/termux-packages#23041