GDM session list is too short
I'm running an up to date version of Fedora 20 and testing gdm as a session manager for a computer lab setup.
To accommodate user requests there are quite a lot of window managers installed, but the GDM dialog to display these sessions is too short and goes off screen at the bottom of the screen. Is there a workaround for this issue besides switching to another DM?
The corresponding bug report has been created here: https://bugzilla.gnome.org/show_bug.cgi?id=734352
It's typical in that kind of environment to disable the user menu and have users enter both their username and password - it makes it harder for people to get a successful inappropriate login by guessing.
The user menu is disabled, this is about the window manager selector.