Greeter shows on closed laptop display

I have this configuration (laptop is closed):
displays:
- first external monitor (normal orientation, enabled)
- second external monitor (clockwise orientation, enabled)
- third nonexternal monitor (disabled)
and external wireless (with usb) keyboard and mouse.

When laptop wake up (after suspend several hours) I don't see login form
problem is solved only I open laptop (third nonexternal monitor activating) and log in