root      1382  1.9  0.5 915308 41648 tty7     Ssl+ 00:56   0:08 /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
root      3269  8.8  0.6 148324 53448 ?        Ss   01:03   0:00 Xorg :8 -config /etc/bumblebee/xorg.conf.nvidia -configdir /etc/bumblebee/xorg.conf.d -sharevts -nolisten tcp -noreset -verbose 3 -isolateDevice PCI:10:00:0 -modulepath /usr/lib/nvidia-331/xorg,/usr/lib/xorg/modules
alex      3282  0.0  0.0  13916  2356 pts/10   S+   01:03   0:00 grep --color=auto X