Screencast capture in Full Screen Exclusive Mode on XWayland

[Philip Race]

Jonas,

The problem discussed here 
https://wiki.openjdk.org/display/wakefield/Meeting+Notes

"And there is one that is not a crash, with one particular test on 
particular systems, which we still need to analyze, related to be not 
able to get the screen data."

looks like a case in which JDK uses puts a window into full screen mode 
using this code
https://github.com/openjdk/jdk/blob/master/src/java.desktop/unix/native/libawt_xawt/awt/awt_GraphicsEnv.c#L1672

In this case screencast capture of that window just fails.

I found  a 12-18 month old thread where you were mentioned although I'm 
not sure if you were directly involved
or just integrating fixes.

https://github.com/flatpak/xdg-desktop-portal/issues/610
which linked to this
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1914

Can you shed any light on whether this might still be an issue on Gnome 
42 (which is what I think I have).

-phil.


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