emacs 29.4-1: Connection lost to X server

[Charles Henkel]

Context:
              Both Win 10 (10.0.19044) and Win 11 (24H2)
              Latest versions you get installing as of 15jan2025:
                            cygwin 3.5.5-1
                            emacs 29.4-1
                            xorg-server 21.1.12-1

Problem:
              After a few minutes idle, emacs crashes with message "Connection lost to X server" in the invoking shell (either xterm or xfce4-terminal) window.

Workaround:
              Revert to emacs 29.3-1

Resolution:
              I really don't know how to debug this, but I can provide further info with direction.