Keynote Presentation Share Shows Only a Green or Black Screen on a Mac

Keynote Presentation Share

Keynote presentation share shows only a green or black screen on a Mac.

My Share Screen or Application share shows only a green or black screen on a Mac.

Attendee sees a green screen during desktop share in meeting.

Attendee sees a green screen during my Mac screen share in meeting.

Attendee unable to see shared application, screen is black.

Solution:

When delivering a Keynote presentation, you may experience various applications opening unexpectedly. Applications likely to open include the Apple Software Update, Expose, Front Row or any application configured to use a timed launch sequence. For this kind of behavior, enable the ability for any other application to open during a presentation in Keynote's preferences.

To enable other application to open Keynote:

  1. Open Keynote.
  2. Open the Preferences window (Keynote > Preferences...).
  3. Select the Slideshow tab.
  4. Check 'Allow Expose, DashBoard and others to use screen' as shown below:

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