The following command switches to 1440x900, scaled at 100%
xrandr --output eDP --auto --mode "1440x900"
The following command switches to 2880x1800, scaled at 200%
xrandr --output eDP --auto --mode "2880x1800"
The following command switches to 1440x900, scaled at 100%
xrandr --output eDP --auto --mode "1440x900"
The following command switches to 2880x1800, scaled at 200%
xrandr --output eDP --auto --mode "2880x1800"