Tom Horsley <horsley1953 <at> gmail.com> writes:
I just installed a couple of virtual fedora 19 machines
(32 and 64 bit), and I get a GDM login screen, click my
user and type my password, and gnome-shell starts using
94% of the CPU.
See
https://bugzilla.redhat.com/show_bug.cgi?id=946964 . This is due to gdm
being broken, so you need to use a different display manager. Install a
different one (for example lightdm) and also system-switch-displaymanager to
change DM (you can also do it directly with systemctl commands).