Re: GDM greeter on wrong monitor with TwinView
I've unpacked the source rpms for gdm (for Fedora 7, 8, 9, 10), and ahad a quick look.
In gdm-2.20.5 (Fedora 8), gdm would use Xinerama to get the list of monitors.
Then gdm had a major rewrite, In which they ripped out a bunch of functionality,
including it seems, said Xinerama code.
(ref. gdm-2.22.0,Fedora 9)
My guess would be that they did that for faster boot times.
I'm still working on it.