chrome and clementine (and possibly other QT5 apps) steal input focus / cannot type

[baitisj]

Describe the bug
Launching either chrome or clementine-player cause problems with keyboard input and prevent the user from typing in not just e.g. chrome but in other apps running as well.

To Reproduce
Steps to reproduce the behavior:

1. I use xfce as my window manager
2. Launch e.g. a terminal
3. Launch either chrome or clementine-player
4. Try typing in the terminal. You can't! As soon as you press a key, the keyboard focus changes.
5. Try typing in e.g. the URL bar in chrome. You can't!
6. Exit either chrome or clementine-player. System returns to normal behavior

OS Version:

 Project Trident Information
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OS Version: 18.12-RELEASE-U3
Build Date: 20190205164624
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[baitisj]

Here's some more stuff to consider:
If I launch TightVNC viewer (vncviewer) and then launch the QT5 designer, I see this on the console:

CleanupXtErrorHandler called
Error: Event with wrong window

vncviewer then terminates due to this error.

[baitisj]

I tested this in Lumina Desktop Environment and the problem went away.
My solution will be to modify Lumina so that I can drag windows to screen edges in order to maximize them and drop XFCE.

[RodMyers]

is this fixed and/or working for you now?

[beanpole135]

Just FYI: I think keyboard "focus" is typically the responsibility of the window manager. If it is not working properly for XFCE, but is working fine for Lumina (fluxbox), then that sounds like you might need to open a bug ticket with whatever window manager that XFCE is using.