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Alternative if you present regularly: 1. Enable "extended destkop", rather than "mirror desktop". 2. Select an appropriate wallpaper, or just black.

• digi_owl 10y ago
  Best i can tell, presenters use mirror so that they can see their own slides on the screen while talking. Frankly i think a seldom talked about Android feature may be a better solution. https://developer.android.com/about/versions/android-4.2.html#SecondaryDisplays https://developer.android.com/about/versions/android-4.2.htm...
  • anc84 10y ago
    Any presentation tool worth using has a presenter mode where on your primary display you see things like the current slide, your notes, a timer, the upcoming slide, etc.
  • semi-extrinsic 10y ago
    I think PowerPoint already does this; Keynote's had it for ages, and I've done it on Linux with Beamer a few years back. You have presenter's notes with a small slide preview on the screen in front of you, actual slides on the big screen. These days I run my presentations in reveal.js (HTML5), so the output is trivially cross-platform and videos, 3D content etc. always work flawlessly. This also has speaker notes, implemented as two browser windows (one for each screen) with linked controls.