xrandr

~$ xrandr
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-2 connected (normal left inverted right x axis y axis)
  3840x2160     60.00 + 119.91    59.94    50.00    30.00    29.97    25.00    23.98
  2560x1440    120.00
  1920x2160    143.84
  1920x1080    119.88    60.00    59.94    50.00
  1680x1050     59.95
  1440x900      59.89
  1280x1024     60.02
   1280x960      60.00
  1280x800      59.81
  1280x720      60.00    59.94    50.00
  1024x768      60.00
  800x600       75.00    60.32    56.25
  720x576       50.00
  720x480       59.94
  640x480       59.94    59.93
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 600mm x 340mm
  3840x2160     60.00 + 119.91*   59.94    50.00    30.00    29.97    25.00    23.98
  2560x1440    120.00
  1920x2160    143.84
   1920x1080    119.88    60.00    59.94    50.00
  1680x1050     59.95
  1440x900      59.89
  1280x1024     60.02
  1280x960      60.00
  1280x800      59.81
  1280x720      60.00    59.94    50.00
  1024x768      60.00
  800x600       75.00    60.32    56.25
  720x576       50.00
  720x480       59.94
  640x480       59.94    59.93
DP-5 disconnected (normal left inverted right x axis y axis)
USB-C-0 disconnected (normal left inverted right x axis y axis)