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by jsymolon 1645 days ago
Sweet !

  :~$ sudo ddcutil detect
  Invalid display
  I2C bus:             /dev/i2c-1
    EDID synopsis:
    Mfg id:           AUO
    Model:            
    Serial number:    
    Manufacture year: 2009
    EDID version:     1.3
    DDC communication failed
    This appears to be a laptop display. Laptop displays do not support DDC/CI.
  Display 1
  I2C bus:             /dev/i2c-2
    EDID synopsis:
    Mfg id:           DEL
    Model:            DELL U2415
    Serial number:    CFV9N94S0Y2S
    Manufacture year: 2019
    EDID version:     1.3
    VCP version:         2.1