Rescaling a display on ubuntu

rescale.md

First by running xrandr --current you'll get a list of display connections by format, for example below I have a single HDMI cable to my display:

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
HDMI1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 480mm x 270mm
   1920x1080     60.00*+  50.00    50.00    59.94  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     60.02  
   1440x900      59.90  
   1280x800      59.91  
   1280x720      60.00    50.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       60.00    59.94  
   720x400       70.08  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Using the above command we can then run xrandr --output HDMI1 --scale 1.5x1.5 to make the display scale as if the monitor were larger.