ftrace doesn't pass the environment on its children: $ echo $DISPLAY :0.0 $ ftrace -version 0.0.1.2008.03.19.rh1 $ ftrace -- `which bash` -c set | grep DISPLAY DISPLAY=:0.0 $ ./frysk-core/frysk/bindir/ftrace -version 0.2.50 $ ./frysk-core/frysk/bindir/ftrace -- bash -c set | grep DISPLAY $
Stan Cox fixed that yesterday.