Have you been annoyed by gnome 3 turning off your display while you were
trying to watch eg Youtube videos?  No worries, you shall be helped :-)

Gnome-Presentation-Mode is a tiny gnome-shell extension that adds a new
entry to the power menu. While presentation mode is on the screensaver
and the automatic suspend will not kick in, allowing you to sit back and
enjoy whatever you are doing without having to wiggle the mouse every
few minutes.


Installation instructions: Just clone the repo, copy the extension in
your gnome-shell extensions directory and restart gnome-shell (default:
alt+f2, type r, press enter).

git clone [email protected]:RaphaelKimmig/Gnome-Presentation-Mode.git

cd Gnome-Presentation-Mode

mkdir -p ~/.local/share/gnome-shell/extensions/

cp -r [email protected] ~/.local/share/gnome-shell/extensions/