Sorry for the newbie question, but is there a null display setting for the
$DISPLAY env variable?

I want to do the equivalent of:
     >xclock -display null:0.0
Or
   >export DISPLAY=null:0.0
   >xclock &

Where the above would make the display manager think it is bringing up
xclock on a perfectly good display that is the equivalent of /dev/null.

Any ideas?


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