Here is a checklist when setting up Presenter Display
Easily create gorgeous presentations with Keynote, featuring powerful yet easy-to-use tools and dazzling effects that will make you a very hard act to follow. The Theme Chooser lets you skim through an impressive collection of 30 new and updated Apple-designed themes. Once you’ve chosen the perfect. Processor 2.5 GHz Intel Core i5. The same videos play smoothly in Keynote's Navigator view, and also play smoothly in fullscreen at any screen resolution in QuickTime Player and in Powerpoint. They also play smoothly in fullscreen at any screen resolution if I downgrade to Keynote 8.3: the problem definitely seems to be due to Keynote 9.0.
1 - Connect a second display to the Mac which is powered on and has the input selected for the Mac
2 - Apple Menu > System Preferences > Displays > Arrangement: deselect mirror option
3 - Keynote Preferences > Slideshow: select the option for; Enable Presenter Display
4 - select the content and layout of Presenter Display:
Play > Customise Presenter Display
5 - if there is only one display available, presenter display can be shown using:

Play > Rehearse Slideshow
6 - if Presenter Display is showing on the wrong display, swap displays by pressing X on the keyboard
Oct 10, 2019 1:03 AM
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