services required by the gnome shell?

after disabling a bunch of services to trim start up memory and boot time, I find that dwm, mate, mate with compiz, and openobx all work the same. the gnome shell, however, will not start up. here is a list of services disabled:

abrt*.service auditd.service avahi-daemon.* bluetooth.* dev-hugepages.mount dev-mqueue.mount fedora-configure.service fedora-loadmodules.service fedora-readonly.service ip6tables.service iptables.service irqbalance.service mcelog.service rsyslog.service sm-client.service sys-kernel-config.mount sys-kernel-debug.mount

can anyone see anything there that, disabled, would prevent the gnome shell from even starting up?