$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected primary (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 620mm x 340mm
3840x2160 60.00 + 59.94 50.00 30.00 29.97 25.00 23.98
2560x1440 59.95
2048x1280 60.00
1920x2160 59.99
1920x1080 60.00* 59.94 50.00 23.97 60.00 50.04
1600x1200 60.00
1280x1024 75.02 60.02
1280x800 59.81
1280x720 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DP-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
Thanks again, learning all sorts of new commands