title: Bluetooth Pairing with DisplayOnly no passkey box appears
body: <p>I am trying to configure a bluetooth chip for linux to pair with an android phone. I will have a display on which I am able to show a 6 digit passkey, so I am trying to set the Bluetoothctl agent to DisplayOnly.</p>
  
  <p>According to the table in this post <a href="https://www.silabs.com/community/wireless/bluetooth/knowledge-base.entry.html/2016/07/11/bt121_-_legacy_pairi-MnCo" rel="nofollow noreferrer">https://www.silabs.com/community/wireless/bluetooth/knowledge-base.entry.html/2016/07/11/bt121_-_legacy_pairi-MnCo</a>
  If the responder is DisplayOnly, and the initiator (Android) is KeyboardDisplay, it should use Passkey entry, with the responder displaying the code and the initiator entering the code. </p>
  
  <p>What actually happens is the Android shows nothing when attempting to pair, and the bluetoothctl output shows a Numeric Comparison response yes/no: even though I specified I don't have any input (DisplayOnly)</p>
  
  <p>How can I get the bluez agent to actually work as DisplayOnly so it shows a passkey for me to enter on the Android?</p>