Note to self and other affected users: this is a *nasty*, yet feasible workaround until this is fixed:
-------- 8< /etc/inittab ------------------- rldm:a:once:/etc/init.d/lightdm restart -------- 8< -------------------------------- Run `init q` to have it re-examine the inittab and from now on lightdm can be restarted by running `init a`. (This does not change the runlevel, see man init.) Cheers Daniel