When using remote desktop, keymapper fails to capture keyboard events.

[marsxw]

I have installed KeyMapper on my Ubuntu 22. Using either the local keyboard or mouse, I can successfully implement my key mapping. However, when I use a remote desktop software for remote access, the key mapping set up by KeyMapper does not take effect. But the keyboard and mouse capture functions provided by Moonlight are all normal.

[marsxw]

A problem was discovered: when using the game mouse with Moonlight, Sunshine moves relative to the mouse. Keymapper can capture mouse events in this case. However, if Moonlight uses the desktop mouse, Sunshine moves absolutely, and Keymapper will not be able to capture the mouse events.

For example, in the figure, event26 is relative and event27 is absolute.

[marsxw]

By adding this line, keymapper now captures absolute mouse events. It is hoped that this can be modified to also capture absolute mouse events by default.
@grab-device "Mouse passthrough (absolute)"

However, this is only effective for what can be seen in evtest. For some events that are sent to X11, the keymapper cannot capture them.