Laptop + Beamer

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Scripts for setting the resolution when connecting laptops to the projector, e.g. setting the resolution to 1024x768:

xrandr --output LVDS1 --mode 1024x768
xrandr --output VGA1 --same-as LVDS1
xrandr --output VGA1 --mode 1024x768

Switching off the projector:

xrandr --output VGA1 --off
xrandr -s 0