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Date: Sat, 13 Aug 2011 21:38:59 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Polytropon <freebsd@edvax.de>
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	(wonkity.com [127.0.0.1]); Sat, 13 Aug 2011 21:38:59 -0600 (MDT)
Cc: Frank Shute <frank@shute.org.uk>,
	FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: System lockups in X with nVidia GeForce 7600 GS (G73) and Gtk+
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On Sun, 14 Aug 2011, Polytropon wrote:

> PS. Looking at your xorg.conf, maybe the reason why I
>    can't do Ctrl+Alt+Backspace anymore is that DontZap
>    belongs to ServerLayout, not to ServerFlags - I'll
>    quickly check that.

xorg.conf(5) says about ServerFlags:

   Options  specified in this section (with the exception of the
   "Default-ServerLayout" Option) may be overridden by Options specified
   in the active ServerLayout section.

In general, ServerFlags is unnecessary.  Just put the options in 
ServerLayout.

DontZap defaults to off now, but the key sequence has to be set, like 
setxkbmap -option terminate:ctrl_alt_bksp

or

Section "InputDevice"
         Identifier  "Keyboard0"
         Driver      "kbd"
         Option      "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection