Shift-Backspace kills X?

[walt]

On 10/04/2011 09:19 AM, Octoploid wrote:
> walt <w41ter <at> gmail.com> writes:
> 
>> Just lately I've found that Shift-Backspace terminates my X session
>> just the way Ctrl-Alt-Backspace did in the old days.

> Yes, I've hit the same problem. I came up with this hack in .xinitrc ,
> which "solves" the issue for me:
> 
> (sleep 2 && xmodmap -e "keycode 22 = BackSpace BackSpace BackSpace BackSpace
> NoSymbol NoSymbol Terminate_Server")&

That evidently does the same as editing /usr/share/X11/kdb/symbols/terminate
(thanks for the clue Alan :) but how did you come up with that fix on your own?

Are you one of the rare individuals in our solar system who really understands
what that, um, stuff actually means?  I've done a bit of googling on the key-
code stuff in the past and finally gave up in despair of ever making sense of it.

For example, why does the keycode spec include four BackSpaces and two NoSymbols?
Which documentation actually explains why it's done that way?  I'll read it again
if you can point me to it.

Many thanks for the help!