LibreELEC:~ # xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected primary (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 700mm x 390mm
1920x1080     59.93*+  60.00    50.00    59.94    30.00    24.00    29.97    23.98
1920x1080i    60.00    50.00    59.94
1400x1050     59.95
1280x1024     60.02
1360x768      59.80
1280x768      60.35
1280x720      59.65    60.00    50.00    59.94
1024x768      60.00
800x600       60.32
720x576       50.00
720x576i      50.00
720x480       60.00    59.94
720x480i      60.00    59.94
640x480       60.00    59.94
720x400       70.08
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)