$ xrandr --prop
Screen 1: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192
VGA-1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
        scaling mode:   None
                supported: None         Full         Center       Full aspect
   1024x768       60.0*
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9
HDMI-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
        EDID:
                00ffffffffffff004c2df50336324454
                2c130103801009782aee91a3544c9926
                0f5054bfef80a94081808140714f0101
                010101010101283c80a070b023403020
                3600a05a0000001a011d007251d01e20
                6e285500a05a0000001e000000fd0032
                4b1b5111000a202020202020000000fc
                0053796e634d61737465720a2020019e
        dithering:      Off
                supported: Off          On           Automatic
        scaling mode:   Full
                supported: None         Full         Center       Full aspect
   1920x1200      60.0*+
   1600x1200      60.0
   1280x1024      75.0     60.0
   1280x960       60.0
   1152x864       75.0
   1280x720       60.0
   1024x768       75.1     70.1     60.0
   832x624        74.6
   800x600        72.2     75.0     60.3     56.2
   720x480        59.9
   640x480        72.8     75.0     66.7     60.0
   720x400        70.1