Comment # 32 on bug 1090122 from Stefan Dirsch

Hmm. So I guess this is again *without* "WaylandEnable=false" in
/etc/gdm/custom.conf, right? Can you confirm this?

So running gdm itself on Wayland and then running the GNOME session on top of
X.Org appears to work for you - for whatever reasons.

I guess we can then close the issue then, since this is what people will try,
if GNOME on Wayland does not work.