Just did a Cygwin update on my Windows 10 box and after restarting X11 I
found the keyboard layout switched back to the default (Qwerty) from my
normal (Dvorak).

From the X11 logs:
[2516952.656] (--) Setting autorepeat to delay=500, rate=31
[2516952.656] (--) Windows keyboard layout: "00010409" (00010409) "United
States-Dvorak", type 4
[2516952.656] (--) Found matching XKB configuration "English (USA,Dvorak)"
[2516952.656] (--) Model = "pc105" Layout = "dvorak" Variant = "none"
Options = "none"
[2516952.656] Rules = "base" Model = "pc105" Layout = "dvorak" Variant =
"none" Options = "none"

*[2516952.859] (EE) Error loading keymap /tmp/server-0.xkm[2516952.859]
(EE) XKB: Failed to load keymap. Loading default keymap instead.*
[2516953.078] winInitMultiWindowWM - DISPLAY=:0.0
[2516953.078] winMultiWindowXMsgProc - DISPLAY=:0.0

So, this *isn't* the old culprit of xkbcomp not working, because there is
no error there.

I reverted back to 2.37-1 of "xkeyboard-config" and everything is working
fine again, so it is the culprit in some way.


-- 
Nem W Schlecht
"Perl did the magic.  I just waved the wand."