Have you tried connecting to $DISPLAY?

Jared Anderson spoke forth with the blessed manuscript:
> Just curious of the most effective way to determine if X is running in a shell script.  I have used a few ugly methods of such, but they are ugly: the most recent is no longer effective while using radeonfb driver and splashutils.  Any useful input would be appreciated!!
> 
> Thanks.
> 
> -----
> Computers are like air conditioners.  Both stop working, if you open windows.
>         -- Adam Heath
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