On 03/11/2023 20:17, Stone, Timothy M via Cygwin wrote:
I'm having a really hard time debugging this issue.



If I use the exact same version of cygwin and XWin, exact same code, exact same 
Motif GUI app...



I find that when I try to use copy/paste functionality in TextFieldWidgets:



   *Cut/Copy/Paste works perfectly on Windows 7 Professional



   *Cut/Copy/Paste does not work at all and typically crashes on Windows 11 
Enterprise


I'm assuming this means "the X server crashes", but it's not exactly clear.

If that is the case, there are some instructions on generating backtraces to help with debugging at [1].

[1] https://x.cygwin.com/devel/backtrace.html


I am using an older version of cygwin for this specific test (cygwin 1.7.15 and 
XWin 1.13.2-1), but I am having the same issue with the latest version as well.

[...]

Any help greatly appreciated!  Seems this must be a system issue since 
everything about the cygwin and XWin is exactly the same on both systems?

It's not really safe to make assumptions like this. This could be a latent bug in XWin which just happens to get exposed on W11 (or that particular system, even)...



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