I've run today's updates (main repo, x86) and after they were finished GDM couldn't start:
"arguments to dbus_connection_ref() were incorrect, assertion "connection != NULL" failed in file ...". Xfce didn't work too, as everything that needs dbus, I think. What I made - remove dev-libs/dbus-glib and sys-apps/dbus with --nodeps and install from Portage - worked; then downgrade to Entropy version - worked too. It's confirmed by three users on IRC. I have no idea why it happens for some… I suggested to run equo install -a dev-libs/dbus-glib sys-apps/dbus, worked for ONE of them. Since I've no better idea, maybe recompile (to make people upgrade dbus) or bump to newest? also: http://forum.sabayon.org/viewtopic.php?f=86&t=24830&sid=4a53f2e187e3253083b803d876a20983