Upon first login to x11/gdm (Gnome Display Manager) the X session restarts when there is desktop activity (e.g. starting an application) and presents GDM again. After second login the system is stable. This happens quite frequently but is intermittent nonetheless. x11/gnome3 is version 3.16.2 and x11-servers/xorg-server is version 1.17.4,1.
Gnome3 has version 3.18.0 and xorg-server has 1.18.4. Seems overcome by events. Close?
Close here with overcome by events. Should still issues with newer versions, please reopen or file a new PR: