$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 298mm
   1920x1080     60.00 + 144.00   119.98*   99.93    59.94
   1280x1024    119.96    75.02    60.02
   1440x900     119.85
   1152x864      75.00
   1024x768     119.99    75.03    60.00
   832x624       74.55
   800x600      119.97    75.00    60.32    56.25
   640x480      119.99    75.00    60.00    59.94
   720x400       70.08