ps aux | grep -E "hald|dbus-daemon|udevd"
root       486  0.0  0.0   2572   944 ?        S<s  15:24   0:00 /sbin/udevd -d
dbus      2227  0.0  0.1   2956  1088 ?        Ss   15:24   0:00 dbus-daemon --system
68        2672  0.0  0.2   4920  3044 ?        Ss   15:24   0:01 hald
root      2673  0.0  0.0   3088   928 ?        S    15:24   0:00 hald-runner
68        2684  0.0  0.0   2076   796 ?        S    15:24   0:00 hald-addon-keyboard: listening on /dev/input/event1
root      2686  0.0  0.1   4876  1540 ?        S    15:24   0:00 /usr/libexec/hald-addon-dell-backlight
68        2688  0.0  0.0   2072   828 ?        S    15:24   0:00 hald-addon-keyboard: listening on /dev/input/event3
68        2690  0.0  0.0   2076   804 ?        S    15:24   0:00 hald-addon-keyboard: listening on /dev/input/event4
68        2691  0.0  0.0   2072   792 ?        S    15:24   0:00 hald-addon-keyboard: listening on /dev/input/event5
root      2714  0.0  0.0   3152   988 ?        S    15:24   0:00 /usr/libexec/hald-addon-cpufreq
root      2726  0.0  0.0   3136   868 ?        S    15:24   0:00 hald-addon-storage: polling /dev/scd0 (every 2 sec)
david     3015  0.0  0.0   2824   856 ?        Ss   15:25   0:00 /bin/dbus-daemon --fork --print-pid 4 --print-address 8 --session
root      5199  0.0  0.0   4012   784 pts/0    S+   16:19   0:00 grep -E hald|dbus-daemon|udevd