2 Replies Latest reply on Apr 20, 2020 5:46 PM by ShifangZ_26

    Does USB Alt Mode Billboard connection need to be persistent after entering Alt Mode?

    KyTr_1955226

      Quick question regarding Alt mode for USB-DP dongles.

       

      From what I understand, the Billboard device must present in order to negotiate the PD settings and enter Alt mode for USB-C to Displayport functionality.

       

      Does this connection need to be persistent after alt mode has been entered?  I.E. if I wanted to use the USB 2.0 connection for another device after entering alt. mode via a USB mux, is this something that can be done?  Or will the device fall out of alt mode if the billboard device is disconnected?

       

      Help is most appreciated!

      Thanks!