~/.config/monitors.xml

<monitors version="1">
  <configuration>
      <clone>no</clone>
      <output name="LVDS1">
          <vendor>AUO</vendor>
          <product>0x26ec</product>
          <serial>0x00000000</serial>
          <width>1366</width>
          <height>768</height>
          <rate>60</rate>
          <x>1440</x>
          <y>0</y>
          <rotation>normal</rotation>
          <reflect_x>no</reflect_x>
          <reflect_y>no</reflect_y>
          <primary>yes</primary>
      </output>
      <output name="VGA1">
          <vendor>???</vendor>
          <product>0x0000</product>
          <serial>0x00000000</serial>
          <width>1440</width>
          <height>900</height>
          <rate>60</rate>
          <x>0</x>
          <y>0</y>
          <rotation>normal</rotation>
          <reflect_x>no</reflect_x>
          <reflect_y>no</reflect_y>
          <primary>no</primary>
      </output>
      <output name="HDMI1">
      </output>
      <output name="DP1">
      </output>
      <output name="VIRTUAL1">
      </output>
  </configuration>
</monitors>