maintainer-feedback requested: [Bug 252235] x11/xorg: MacBook Pro 8,3 faulty key mapping

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Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11 at FreeBSD.org> for maintainer-feedback:
Bug 252235: x11/xorg: MacBook Pro 8,3 faulty key mapping
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252235



--- Description ---
Under X11, the ` and ~ keys return < and > by default.

Found a fix in this thread:

https://unix.stackexchange.com/questions/33528/setxkbmap-for-macbook-pro-us

The problem is the TLDE and LSGT mappings are switched in
/usr/local/share/X11/xkb/symbols/us.

Problem does not occur on a MacBook Pro 2,2.  Maybe the keyboard scan codes are
different in newer models?

Key mappings are correct in a vt console using keymap="us.macbook".

The following does NOT fix the issue:

<<<ROOT at beluga.acadix>>> /home/bacon 48 # cat
/etc/X11/xorg.conf.d/macbook-xkb.conf 
Section "InputDevice"
	Identifier  "Keyboard0"
	Driver	    "kbd"
	Option "XkbRules" "xorg"
	Option "XkbLayout" "us"
	Option "XkbVariant" "mac"
EndSection

I hacked around it for now by adding

setxkbmap -layout us -variant mac

to the Xsession file, but this of course only works after login.  Keyboard is
still confused in the xdm panel, so passwords constaining ~ or ` won't work.