I just set up Ubuntu 20.04.1 with VirtualBox 6.1 and the standard screen resolution sizes don't allow for me to use my full monitor display.
I know how to use xrandr
to add new resolution ratios to my options, but I don't know which resolution ratio I SHOULD be using. At this point, I've added 10 or so different resolutions (eg. 1440x720, 1920x1080, ...) but I can't find the one that perfectly fits.
Is there a way to find the exact resolution ratio or exact values for my display? I'm getting a bit tired of trial and error at this point.
In case it's important, this is how I'm adding custom resolutions in terminal:
cvt 1440 720
sudo xrandr --newmode "1440x720_60.00" 83.75 ...
sudo xrandr --addmode Virtual1 "1440x720_60.00"