Greeter shows on closed laptop display

[axel-n]

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

[axel-n]

I used to use ubuntu 19.04 and that was not the problem.

[cassidyjames]

As a workaround, you can move your cursor around until it shows up on an external display. But I agree this is not ideal, and can confirm the behavior.

[axel-n]

I can't see anything (even after move cursor) while not open the laptop