login screen not visible on external monitor

asked 2017-05-30 14:00:24 -0600

I have Fedora 25 on Dell laptop with a docking station to which I connected an external monitor. Initially everything worked fine, but after some system update I can't see the login screen on the external (primary) monitor. So when I turn on the laptop the loging screen is visible only on the laptop's built-in display and on the external monitor I can only see a grey background of the login screen. How to fix that?

Thanks, Robert

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